Élémentaire - The interactive periodic table of elements
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
K 1  1H1,0 4  2He4,0
L 7  3Li6,9 9  4Be9,0 11 5B10,8 12 6C12,0 14 7N14,0 16 8O16,0 19 9F19,0 20 10Ne20,2
M 2311Na23,0 2412Mg24,3 2713Al27,0 2814Si28,1 3115P31,0 3216S32,1 3517Cl35,5 4018Ar39,9
N 3919K39,1 4020Ca40,1 4521Sc45,0 4822Ti47,9 5123V50,9 5224Cr52,0 5525Mn54,9 5626Fe55,8 5927Co58,9 5828Ni58,7 6329Cu63,5 6430Zn65,4 6931Ga69,7 7432Ge72,6 7533As74,9 8034Se79,0 7935Br79,9 8436Kr83,8
O 8537Rb85,5 8838Sr87,6 8939Y88,9 9040Zr91,2 9341Nb92,9 9842Mo95,9 9843Tc(98) 10244Ru101,1 10345Rh102,9 10646Pd106,4 10747Ag107,9 11448Cd112,4 11549In114,8 12050Sn118,7 12151Sb121,8 13052Te127,6 12753I126,9 12954Xe131,3
P 13355Cs132,9 13856Ba137,3 Lanthanides 18072Hf178,5 18173Ta180,9 18474W183,3 18775Re186,2 19276Os190,2 19377Ir192,2 19578Pt195,1 19779Au197,0 20280Hg200,6 20581Tl204,4 20882Pb207,2 20983Bi209,0 21084Po(209) 21085At210 22286Rn(222)
Q 22387Fr(223) 22688Ra(226) Actinides 261104Rf(261) 262105Db(262) --106Sg(266) --107Bh(264) --108Hs(277) --109Mt(268) --110Ds(271) --111Rg(272) --112Cn(285) --113Nh(283) --114Fl(285) --115Mc(287) --116Lv(289) --117Ts(--) --118Og(293)



Lanthanides 13957La138,9 14058Ce140,1 14159Pr140,9 14260Nd144,2 14661Pm(145) 15262Sm150,4 15363Eu152,0 15864Gd157,3 15965Tb158,9 16466Dy162,5 16567Ho164,9 16668Er167,3 16969Tm168,9 17470Yb173,0 17571Lu175,0
Actinides 22789Ac(227) 23290Th232,0 23191Pa231,0 23892U238,0 23793Np(237) 24494Pu(244) 24395Am(243) 24796Cm(247) 24797Bk(247) 25198Cf(251) 25499Es(252) 257100Fm(257) 258101Md(258) 259102No(259) 260103Lr(262)

×

Hydrogen

Structure

🔹Nucleus: 1 proton and 0 neutron
🔹Electron Configuration: 1s1
🔹s-block

Physical properties

🔸Melting point: -259,1°C
🔸Boiling point: -252,9°C
🔸Atomic radius (calculated): 53 pm
🔸Group: Nonmetals
🔸Stable nucleus
🔸Ionization Energy (1st): 13,598 eV
🔸Electron Affinity: O,755 eV
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: 2,20

Context

💠Year Discovered: 1766
💠Most common element in universe.
 
×

Helium

Helium inflated balloons.

Structure

🔹Nucleus: 2 protons and 2 neutrons
🔹Electron Configuration: 1s2
🔹s-block
🔹Family: Noble gases

Physical properties

🔸Melting point: N/A
🔸Boiling point: -269°C
🔸Atomic radius (calculated): 31 pm
🔸Group: Nonmetals
🔸Stable nucleus
🔸Ionization Energy (1st): 24,587 eV
🔸Electron Affinity: 0 eV
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: N/A

Context

💠Year Discovered: 1895
💠Used in balloons and as a cooling agent in science.
 
×

Lithium

Structure

🔹Nucleus: 3 protons and 4 neutrons
🔹Electron Configuration: 1s22s1
🔹s-block
🔹Family: Alkali metals

Physical properties

🔸Melting point: 180,54°C
🔸Boiling point: 1 342°C
🔸Atomic radius (calculated): 167 pm
🔸Group: Metals
🔸Stable nucleus
🔸Ionization Energy (1st): 5,391 eV
🔸Electron Affinity: 0,618 eV
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: 0,98

Context

💠Year Discovered: 1817
💠Used in batteries and medicine
 
×

Beryllium

Structure

🔹Nucleus: 4 protons and 5 neutrons
🔹Electron Configuration: 1s22s2
🔹s-block
🔹Family: Alkaline earth metals

Physical properties

🔸Melting point: 1 287°C
🔸Boiling point: 2 470°C
🔸Atomic radius (calculated): 112 pm
🔸Group: Metals
🔸Stable nucleus
🔸Ionization Energy (1st): 9,323 eV
🔸Electron Affinity: 0 eV
🔸Brinell scale: 600 MPa

Chemical properties

🟢 Electronegativity: 1,57

Context

💠Year Discovered: 1797
💠Used in aerospace, present in some precious gems, toxic.
 
×

Boron

Structure

🔹Nucleus: 5 protons and 6 neutrons
🔹Electron Configuration: 1s22s22p1
🔹p-block
🔹Family: Boron

Physical properties

🔸Melting point: 2 075°C
🔸Boiling point: 4 000°C
🔸Atomic radius (calculated): 87 pm
🔸Group: Metalloids
🔸Stable nucleus
🔸Ionization Energy (1st): 8,298 eV
🔸Electron Affinity: 0,277 eV
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: 2,04

Context

💠Year Discovered: 1808
💠Used as insecticides, effective neutron absorber.
 
×

Carbon

Structure

🔹Nucleus: 6 protons and 6 neutrons
🔹Electron Configuration: 1s22s22p2
🔹p-block
🔹Family: Carbon

Physical properties

🔸Melting point: 3 550°C
🔸Boiling point: 4 027°C
🔸Atomic radius (calculated): 67 pm
🔸Group: Nonmetals
🔸Stable nucleus
🔸Ionization Energy (1st): 11,261 eV
🔸Electron Affinity: 1,595 eV
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: 2,55

Context

💠Year Discovered: 3750 BC
💠Life’s foundation, used in materials. From pen to diamond.
 
×

Nitrogen

Liquid Nitrogen

Structure

🔹Nucleus: 7 protons and 7 neutrons
🔹Electron Configuration: 1s22s22p3
🔹p-block
🔹Family: Nitrogen

Physical properties

🔸Melting point: -210,1°C
🔸Boiling point: -195,8°C
🔸Atomic radius (calculated): 56 pm
🔸Group: Nonmetals
🔸Stable nucleus
🔸Ionization Energy (1st): 14,534 eV
🔸Electron Affinity: 0,07 eV
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: 3,04

Context

💠Year Discovered: 1772
💠Cryogenic
 
×

Oxygen

Liquid Oxygen

Structure

🔹Nucleus: 8 protons and 8 neutrons
🔹Electron Configuration: 1s22s22p4
🔹p-block
🔹Family: Oxygen

Physical properties

🔸Melting point: -218°C
🔸Boiling point: -183°C
🔸Atomic radius (calculated): 48 pm
🔸Group: Nonmetals
🔸Stable nucleus
🔸Ionization Energy (1st): 13,618 eV
🔸Electron Affinity: 1,46 eV
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: 3,44

Context

💠Year Discovered: 1774
💠Breathing, steelmaking, rocket propellant.
 
×

Fluorine

Structure

🔹Nucleus: 9 protons and 10 neutrons
🔹Electron Configuration: 1s22s22p5
🔹p-block
🔹Family: Halogens

Physical properties

🔸Melting point: -220°C
🔸Boiling point: -188,1°C
🔸Atomic radius (calculated): 42 pm
🔸Group: Nonmetals
🔸Stable nucleus
🔸Ionization Energy (1st): 17,422 eV
🔸Electron Affinity: 3,40 eV
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: 3,98

Context

💠Year Discovered: 1886
💠Dental care, welding
 
×

Neon

Neon gas placed in a high voltage electric field

Structure

🔹Nucleus: 10 protons and 10 neutrons
🔹Electron Configuration: 1s22s22p6
🔹p-block
🔹Family: Noble gases

Physical properties

🔸Melting point: -248,6°C
🔸Boiling point: -246,1°C
🔸Atomic radius (calculated): 38 pm
🔸Group: Nonmetals
🔸Stable nucleus
🔸Ionization Energy (1st): 21,565 eV
🔸Electron Affinity: 0 eV
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: N/A

Context

💠Year Discovered: 1898
💠Emits light when placed in electric field.
 
×

Sodium

Structure

🔹Nucleus: 11 protons and 12 neutrons
🔹Electron Configuration: [Ne] 3s1
🔹s-block
🔹Family: Alkali metals

Physical properties

🔸Melting point: 97,720°C
🔸Boiling point: 882,9°C
🔸Atomic radius (calculated): 190 pm
🔸Group: Metals
🔸Stable nucleus
🔸Ionization Energy (1st): 5,139 eV
🔸Electron Affinity: 0,547 eV
🔸Brinell scale: 0,69 MPa

Chemical properties

🟢 Electronegativity: 0,93

Context

💠Year Discovered: 1807
💠Table salt, food preservative, stabilizer.
 
×

Magnesium

Structure

🔹Nucleus: 12 protons and 12 neutrons
🔹Electron Configuration: [Ne] 3s2
🔹s-block
🔹Family: Alkaline earth metals

Physical properties

🔸Melting point: 650°C
🔸Boiling point: 1 090°C
🔸Atomic radius (calculated) 145 pm
🔸Group: Metals
🔸Stable nucleus
🔸Ionization Energy (1st): 7,646 eV
🔸Electron Affinity: O eV
🔸Brinell scale: 260 MPa

Chemical properties

🟢 Electronegativity: 1,31

Context

💠Year Discovered: 1755
💠Used in medicine, alloys used in aerospace.
 
×

Aluminum

Structure

🔹Nucleus: 13 protons and 14 neutrons
🔹Electron Configuration: [Ne] 3s23p1
🔹p-block
🔹Family: Boron

Physical properties

🔸Melting point: 660,32°C
🔸Boiling point: 2 519°C
🔸Atomic radius (calculated): 118 pm
🔸Group: Metals
🔸Stable nucleus
🔸Ionization Energy (1st): 5,985 eV
🔸Electron Affinity: 0,440 eV
🔸Brinell scale: 245 MPa

Chemical properties

🟢 Electronegativity: 1,61

Context

💠Year Discovered: 1825
💠Used in structures. Used for cans. Infinitely recyclable.
 
×

Silicon

CPU chip using silicon

Structure

🔹Nucleus: 14 protons and 14 neutrons
🔹Electron Configuration: [Ne] 3s23p2
🔹p-block
🔹Family: Carbon

Physical properties

🔸Melting point: 1 414°C
🔸Boiling point: 2 900°C
🔸Atomic radius (calculated): 111 pm
🔸Group: Metalloids
🔸Stable nucleus
🔸Ionization Energy (1st): 8,151 eV
🔸Electron Affinity: 1,385 eV
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: 1,90

Context

💠Year Discovered: 1824
💠Second most abundant element on earth, used in semiconductors
 
×

Phosphorus

Structure

🔹Nucleus: 15 protons and 16 neutrons
🔹Electron Configuration: [Ne] 3s23p3
🔹p-block
🔹Family: Nitrogen

Physical properties

🔸Melting point: 44,15°C
🔸Boiling point: 280,5°C
🔸Atomic radius (calculated): 98 pm
🔸Group: Nonmetals
🔸Stable nucleus
🔸Ionization Energy (1st): 10,487 eV
🔸Electron Affinity: 0,75 eV
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: 2,19

Context

💠Year Discovered: 1669
💠Used in fertilizers and to ignite matches (red P is converted in white P, by friction, which ignites instantly at 30°C).
 
×

Sulfur

Structure

🔹Nucleus: 16 protons and 16 neutrons
🔹Electron Configuration: [Ne] 3s23p4
🔹p-block
🔹Family: Oxygen

Physical properties

🔸Melting point: 115,21°C
🔸Boiling point: 444,72°C
🔸Atomic radius (calculated): 88 pm
🔸Group: Nonmetals
🔸Stable nucleus
🔸Ionization Energy (1st): 10,36 eV
🔸Electron Affinity: 2,07 eV
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: 2,58

Context

💠Year Discovered: 500 BC
💠Used to make acids or glass, on matches, explosives.
 
×

Chlorine

Tablets containing chlorine for water treatment

Structure

🔹Nucleus: 17 protons and 18 neutrons
🔹Electron Configuration: [Ne] 3s23p5
🔹p-block
🔹Family: Halogens

Physical properties

🔸Melting point: -101,5°C
🔸Boiling point: -34,040°C
🔸Atomic radius (calculated): 79 pm
🔸Group: Nonmetals
🔸Stable nucleus
🔸Ionization Energy (1st): 12,968 eV
🔸Electron Affinity: 3,62 eV
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: 3,16

Context

💠Year Discovered: 1774
💠Disinfectant, water treatment.
 
×

Argon

Argon gas placed in a high voltage electric field

Structure

🔹Nucleus: 18 protons and 22 neutrons
🔹Electron Configuration: [Ne] 3s23p6
🔹p-block
🔹Family: Noble gases

Physical properties

🔸Melting point: -189°C
🔸Boiling point: -186°C
🔸Atomic radius (calculated): 71 pm
🔸Group: Nonmetals
🔸Stable nucleus
🔸Ionization Energy (1st): 15,760 eV
🔸Electron Affinity: 0 eV
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: N/A

Context

💠Year Discovered: 1894
💠Emits light when placed in electric field.
 
×

Potassium

Structure

🔹Nucleus: 19 protons and 20 neutrons
🔹Electron Configuration: [Ar] 4s1
🔹s-block
🔹Family: Alkali metals

Physical properties

🔸Melting point: 63,380°C
🔸Boiling point: 758,9°C
🔸Atomic radius (calculated): 243 pm
🔸Group: Metals
🔸Stable nucleus (Radioactive: isotope 40)
🔸Ionization Energy (1st): 4,341 eV
🔸Electron Affinity: 0,502 eV
🔸Brinell scale: 0,363 MPa

Chemical properties

🟢 Electronegativity: 0,82

Context

💠Year Discovered: 1807
💠Helps maintaining fluid and blood volume.
 
×

Calcium

Structure

🔹Nucleus: 20 protons and 20 neutrons
🔹Electron Configuration: [Ar] 4s2
🔹s-block
🔹Family: Alkaline earth metals

Physical properties

🔸Melting point: 841,9°C
🔸Boiling point: 1 484°C
🔸Atomic radius (calculated): 194 pm
🔸Group: Metals
🔸Stable nucleus
🔸Ionization Energy (1st): 6,113 eV
🔸Electron Affinity: 0,0246 eV
🔸Brinell scale: 167 MPa

Chemical properties

🟢 Electronegativity: 1,0

Context

💠Year Discovered: 1808
💠Strengthen bones and used in buildings.
 
×

Scandium

Structure

🔹Nucleus: 21 protons and 24 neutrons
🔹Electron Configuration: [Ar] 3d14s2
🔹d-block
🔹Family: Scandium

Physical properties

🔸Melting point: 1 541°C
🔸Boiling point: 2 830°C
🔸Atomic radius (calculated): 184 pm
🔸Group: Transition metals
🔸Stable nucleus
🔸Ionization Energy (1st): 6,562 eV
🔸Electron Affinity: 0,188 eV
🔸Brinell scale: 750 MPa

Chemical properties

🟢 Electronegativity: 1,36

Context

💠Year Discovered: 1879
💠Alloyed with Aluminum to be used in aerospace or sport equipments. Also used for lighting.
 
×

Titanium

Structure

🔹Nucleus: 22 protons and 26 neutrons
🔹Electron Configuration: [Ar] 3d24s2
🔹d-block
🔹Family: Titanium

Physical properties

🔸Melting point: 1 668°C
🔸Boiling point: 3 287°C
🔸Atomic radius (calculated): 176 pm
🔸Group: Transition metals
🔸Stable nucleus
🔸Ionization Energy (1st): 6,828 eV
🔸Electron Affinity: 0,079 eV
🔸Brinell scale: 716 MPa

Chemical properties

🟢 Electronegativity: 1,54

Context

💠Year Discovered: 1791
💠Mainly used in aircraft, spacecraft and missiles because of its ability to withstand extremes temperatures.
 
×

Vanadium

Structure

🔹Nucleus: 23 protons and 28 neutrons
🔹Electron Configuration: [Ar] 3d34s2
🔹d-block
🔹Family: Vanadium

Physical properties

🔸Melting point: 1 910°C
🔸Boiling point: 3 407°C
🔸Atomic radius (calculated): 171 pm
🔸Group: Transition metals
🔸Stable nucleus
🔸Ionization Energy (1st): 6,746 eV
🔸Electron Affinity: 0,524 eV
🔸Brinell scale: 628 MPa

Chemical properties

🟢 Electronegativity: 1,63

Context

💠Year Discovered: 1801
💠Mainly used as a steel additive to make a very tough alloy.
 
×

Chromium

Structure

🔹Nucleus: 24 protons and 28 neutrons
🔹Electron Configuration: [Ar] 3d54s1
🔹d-block
🔹Family: Chromium

Physical properties

🔸Melting point: 1 907°C
🔸Boiling point: 2 671°C
🔸Atomic radius (calculated): 166 pm
🔸Group: Transition metals
🔸Stable nucleus
🔸Ionization Energy (1st): 6,767 eV
🔸Electron Affinity: 0,666 eV
🔸Brinell scale: 1120 MPa

Chemical properties

🟢 Electronegativity: 1,66

Context

💠Year Discovered: 1797
💠Used to produce stainless steel or can be plated to provide corrosion resistance or increase hardness.
 
×

Manganese

Structure

🔹Nucleus: 25 protons and 30 neutrons
🔹Electron Configuration: [Ar] 3d54s2
🔹d-block
🔹Family: Manganese

Physical properties

🔸Melting point: 1 246°C
🔸Boiling point: 2 061°C
🔸Atomic radius (calculated): 161 pm
🔸Group: Transition metals
🔸Stable nucleus
🔸Ionization Energy (1st): 7,434 eV
🔸Electron Affinity: 0 eV
🔸Brinell scale: 196 MPa

Chemical properties

🟢 Electronegativity: 1,55

Context

💠Year Discovered: 1774
💠Used in steel production to enhance its properties.
 
×

Iron

Structure

🔹Nucleus: 26 protons and 30 neutrons
🔹Electron Configuration: [Ar] 3d64s2
🔹d-block
🔹Family: Iron

Physical properties

🔸Melting point: 1 538°C
🔸Boiling point: 2 861°C
🔸Atomic radius (calculated): 156 pm
🔸Group: Transition metals
🔸Stable nucleus
🔸Ionization Energy (1st): 7,903 eV
🔸Electron Affinity: 0,163 eV
🔸Brinell scale: 490 MPa

Chemical properties

🟢 Electronegativity: 1,83

Context

💠Year Discovered: 2000 BC
💠Used in construction and transportation.
 
×

Cobalt

Structure

🔹Nucleus: 27 protons and 32 neutrons
🔹Electron Configuration: [Ar] 3d74s2
🔹d-block
🔹Family: Cobalt

Physical properties

🔸Melting point: 1 495°C
🔸Boiling point: 2 900°C
🔸Atomic radius (calculated): 152 pm
🔸Group: Transition metals
🔸Stable nucleus
🔸Ionization Energy (1st): 7,881 eV
🔸Electron Affinity: 0,660 eV
🔸Brinell scale: 700 MPa

Chemical properties

🟢 Electronegativity: 1,88

Context

💠Year Discovered: 1735
💠Make corrosion and wear-resistant alloys. Used in batteries because of its thermal stability and high energy density.
 
×

Nickel

Structure

🔹Nucleus: 28 protons and 30 neutrons
🔹Electron Configuration: [Ar] 3d84s2
🔹d-block
🔹Family: Nickel

Physical properties

🔸Melting point: 1 455°C
🔸Boiling point: 2 913°C
🔸Atomic radius (calculated): 149 pm
🔸Group: Transition metals
🔸Stable nucleus
🔸Ionization Energy (1st): 7,640 eV
🔸Electron Affinity: 1,16 eV
🔸Brinell scale: 700 MPa

Chemical properties

🟢 Electronegativity: 1,91

Context

💠Year Discovered: 1751
💠Used in armour plating, batteries and in coins.
 
×

Copper

Structure

🔹Nucleus: 29 protons and 34 neutrons
🔹Electron Configuration: [Ar] 3d104s1
🔹d-block
🔹Family: Copper

Physical properties

🔸Melting point: 1 084,62°C
🔸Boiling point: 2 562°C
🔸Atomic radius (calculated): 145 pm
🔸Group: Transition metals
🔸Stable nucleus
🔸Ionization Energy (1st): 7,727 eV
🔸Electron Affinity: 1,227 eV
🔸Brinell scale: 874 MPa

Chemical properties

🟢 Electronegativity: 1,90

Context

💠Year Discovered: 8000 BC
💠Used in electrical equipments (wires, motors...) due to its good heat and electrical conductivity.
 
×

Zinc

Structure

🔹Nucleus: 30 protons and 34 neutrons
🔹Electron Configuration: [Ar] 3d104s2
🔹d-block
🔹Family: Zinc

Physical properties

🔸Melting point: 419,53°C
🔸Boiling point: 906,9°C
🔸Atomic radius (calculated): 142 pm
🔸Group: Transition metals
🔸Stable nucleus
🔸Ionization Energy (1st): 9,394 eV
🔸Electron Affinity: 0 eV
🔸Brinell scale: 412 MPa

Chemical properties

🟢 Electronegativity: 1,65

Context

💠Year Discovered: 1500
💠Used in medicine, to protect steel from oxidation (galvanization), and batteries.
 
×

Gallium

Structure

🔹Nucleus: 31 protons and 38 neutrons
🔹Electron Configuration: [Ar] 3d104s24p1
🔹p-block
🔹Family: Boron

Physical properties

🔸Melting point: 29,760°C
🔸Boiling point: 2 204°C
🔸Atomic radius (calculated): 136 pm
🔸Group: Metals
🔸Stable nucleus
🔸Ionization Energy (1st): 5,999 eV
🔸Electron Affinity: 0,300 eV
🔸Brinell scale: 60 MPa

Chemical properties

🟢 Electronegativity: 1,81

Context

💠Year Discovered: 1875
💠Mostly used in electronics and semiconductors.
 
×

Germanium

Structure

🔹Nucleus: 32 protons and 42 neutrons
🔹Electron Configuration: [Ar] 3d104s24p2
🔹p-block
🔹Family: Carbon

Physical properties

🔸Melting point: 938,25°C
🔸Boiling point: 2 820°C
🔸Atomic radius (calculated): 125 pm
🔸Group: Metalloids
🔸Stable nucleus
🔸Ionization Energy (1st): 7,90 eV
🔸Electron Affinity: 1,23 eV
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: 2,01

Context

💠Year Discovered: 1886
💠Used in high-speed transistors.
 
×

Arsenic

Structure

🔹Nucleus: 33 protons and 42 neutrons
🔹Electron Configuration: [Ar] 3d104s24p3
🔹p-block
🔹Family: Nitrogen

Physical properties

🔸Melting point: 816,9°C
🔸Boiling point: 614°C
🔸Atomic radius (calculated): 114 pm
🔸Group: Metalloids
🔸Stable nucleus
🔸Ionization Energy (1st): 9,815 eV
🔸Electron Affinity: 0,81 eV
🔸Brinell scale: 1440 MPa

Chemical properties

🟢 Electronegativity: 2,18

Context

💠Year Discovered: 1250
💠Poison. Also used in semiconductors.
 
×

Selenium

Structure

🔹Nucleus: 34 protons and 46 neutrons
🔹Electron Configuration: [Ar] 3d104s24p4
🔹p-block
🔹Family: Oxygen

Physical properties

🔸Melting point: 221°C
🔸Boiling point: 685°C
🔸Atomic radius (calculated): 103 pm
🔸Group: Nonmetals
🔸Stable nucleus
🔸Ionization Energy (1st): 9,753 eV
🔸Electron Affinity: 2,02 eV
🔸Brinell scale: 736 MPa

Chemical properties

🟢 Electronegativity: 2,55

Context

💠Year Discovered: 1817
💠Used to make pigments for ceramics, paint and plastics.
 
×

Bromine

Structure

🔹Nucleus: 35 protons and 44 neutrons
🔹Electron Configuration: [Ar] 3d104s24p5
🔹p-block
🔹Family: Halogens

Physical properties

🔸Melting point: -7,350°C
🔸Boiling point: 58,9°C
🔸Atomic radius (calculated): 94 pm
🔸Group: Nonmetals
🔸Stable nucleus
🔸Ionization Energy (1st): 11,814 eV
🔸Electron Affinity: 3,364 eV
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: 2,96

Context

💠Year Discovered: 1826
💠Fire retardant.
 
×

Krypton

Krypton gas placed in a high voltage electric field

Structure

🔹Nucleus: 36 protons and 48 neutrons
🔹Electron Configuration: [Ar] 3d104s24p6
🔹p-block
🔹Family: Noble gases

Physical properties

🔸Melting point: -157,36°C
🔸Boiling point: -153,22°C
🔸Atomic radius (calculated): 88 pm
🔸Group: Nonmetals
🔸Stable nucleus
🔸Ionization Energy (1st): 14,000 eV
🔸Electron Affinity: 0 eV
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: 3,0

Context

💠Year Discovered: 1898
💠Used as a gas for energy-saving fluorescent lights. Also used for lasers.
 
×

Rubidium

Structure

🔹Nucleus: 37 protons and 48 neutrons
🔹Electron Configuration: [Kr] 5s1
🔹s-block
🔹Family: Alkali metals

Physical properties

🔸Melting point: 39,310°C
🔸Boiling point: 688°C
🔸Atomic radius (calculated): 265 pm
🔸Group: Metals
🔸Stable nucleus
🔸Ionization Energy (1st): 4,117 eV
🔸Electron Affinity: 0,486 eV
🔸Brinell scale: 0,216 MPa

Chemical properties

🟢 Electronegativity: 0,82

Context

💠Year Discovered: 1861
💠Used in atomic clocks (which uses oscillations of the electrons in atoms to measure extremely precise time. Useful for GPS systems and scientific research).
 
×

Strontium

Structure

🔹Nucleus: 38 protons and 50 neutrons
🔹Electron Configuration: [Kr] 5s2
🔹s-block
🔹Family: Alkaline earth metals

Physical properties

🔸Melting point: 776,9°C
🔸Boiling point: 1 382°C
🔸Atomic radius (calculated): 219 pm
🔸Group: Metals
🔸Stable nucleus
🔸Ionization Energy (1st): 5,695 eV
🔸Electron Affinity: 0,0521 eV
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: 0,95

Context

💠Year Discovered: 1790
💠Burns in air, reacts with water. Its salts are used to make red fireworks.
 
×

Yttrium

Structure

🔹Nucleus: 39 protons and 50 neutrons
🔹Electron Configuration: [Kr] 4d15s2
🔹d-block
🔹Family: Scandium

Physical properties

🔸Melting point: 1 526°C
🔸Boiling point: 3 345°C
🔸Atomic radius (calculated): 212 pm
🔸Group: Transition metals
🔸Stable nucleus
🔸Ionization Energy (1st): 6,22 eV
🔸Electron Affinity: 0,307 eV
🔸Brinell scale: 589 MPa

Chemical properties

🟢 Electronegativity: 1,22

Context

💠Year Discovered: 1794
💠Used as an additive in alloys, in lasers to cut through metals and in phosphors (such as LEDs).
 
×

Zirconium

Structure

🔹Nucleus: 40 protons and 50 neutrons
🔹Electron Configuration: [Kr] 4d25s2
🔹d-block
🔹Family: Titanium

Physical properties

🔸Melting point: 1 855°C
🔸Boiling point: 4 409°C
🔸Atomic radius (calculated): 206 pm
🔸Group: Transition metals
🔸Stable nucleus
🔸Ionization Energy (1st): 6,634 eV
🔸Electron Affinity: 0,426 eV
🔸Brinell scale: 650 MPa

Chemical properties

🟢 Electronegativity: 1,33

Context

💠Year Discovered: 1789
💠Used in ultra-strong ceramics and in nuclear power.
 
×

Niobium

Structure

🔹Nucleus: 41 protons and 52 neutrons
🔹Electron Configuration: [Kr] 4d45s1
🔹d-block
🔹Family: Vanadium

Physical properties

🔸Melting point: 2 477°C
🔸Boiling point: 4 744°C
🔸Atomic radius (calculated): 198 pm
🔸Group: Transition metals
🔸Stable nucleus
🔸Ionization Energy (1st): 6,759 eV
🔸Electron Affinity: 0,892 eV
🔸Brinell scale: 736 MPa

Chemical properties

🟢 Electronegativity: 1,6

Context

💠Year Discovered: 1801
💠Used in alloys. Superconductor used in magnets for particle accelerators.
 
×

Molybdenum

Structure

🔹Nucleus: 42 protons and 56 neutrons
🔹Electron Configuration: [Kr] 4d55s1
🔹d-block
🔹Family: Chromium

Physical properties

🔸Melting point: 2 623°C
🔸Boiling point: 4 639°C
🔸Atomic radius (calculated): 190 pm
🔸Group: Transition metals
🔸Stable nucleus
🔸Ionization Energy (1st): 7,092 eV
🔸Electron Affinity: 0,745 eV
🔸Brinell scale: 1500 MPa

Chemical properties

🟢 Electronegativity: 2,16

Context

💠Year Discovered: 1781
💠Makes high-strength steel.
 
×

Technetium

Structure

🔹Nucleus: 43 protons and 55 neutrons
🔹Electron Configuration: [Kr] 4d55s2
🔹d-block
🔹Family: Manganese

Physical properties

🔸Melting point: 2 157°C
🔸Boiling point: 4 265°C
🔸Atomic radius (calculated): 183 pm
🔸Group: Transition metals
🔸Radioactive nucleus
🔸Ionization Energy (1st): 7,28 eV
🔸Electron Affinity: 0,55 eV
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: 1,9

Context

💠Year Discovered: 1937
💠Used for medical imaging.
 
×

Ruthenium

Structure

🔹Nucleus: 44 protons and 58 neutrons
🔹Electron Configuration: [Kr] 4d75s1
🔹d-block
🔹Family: Iron

Physical properties

🔸Melting point: 2 334°C
🔸Boiling point: 4 150°C
🔸Atomic radius (calculated): 178 pm
🔸Group: Transition metals
🔸Stable nucleus
🔸Ionization Energy (1st): 7,361 eV
🔸Electron Affinity: 1,050 eV
🔸Brinell scale: 2160 MPa

Chemical properties

🟢 Electronegativity: 2,2

Context

💠Year Discovered: 1844
💠Used to make electrical contacts.
 
×

Rhodium

Structure

🔹Nucleus: 45 protons and 58 neutrons
🔹Electron Configuration: [Kr] 4d85s1
🔹d-block
🔹Family: Cobalt

Physical properties

🔸Melting point: 1 964°C
🔸Boiling point: 3 695°C
🔸Atomic radius (calculated): 173 pm
🔸Group: Transition metals
🔸Stable nucleus
🔸Ionization Energy (1st): 7,459 eV
🔸Electron Affinity: 1,137 eV
🔸Brinell scale: 1100 MPa

Chemical properties

🟢 Electronegativity: 2,28

Context

💠Year Discovered: 1803
💠One of the most used metals in catalysis. Plated in jewelry to make it shinier and more durable.
 
×

Palladium

Structure

🔹Nucleus: 46 protons and 60 neutrons
🔹Electron Configuration: [Kr] 4d10
🔹d-block
🔹Family: Nickel

Physical properties

🔸Melting point: 1 554,90°C
🔸Boiling point: 2 963°C
🔸Atomic radius (calculated): 169 pm
🔸Group: Transition metals
🔸Stable nucleus
🔸Ionization Energy (1st): 8,337 eV
🔸Electron Affinity: 0,557 eV
🔸Brinell scale: 37,3 MPa

Chemical properties

🟢 Electronegativity: 2,20

Context

💠Year Discovered: 1803
💠Used in fuel cells to power different things such as cars, also widely used in catalytic reactions.
 
×

Silver

Structure

🔹Nucleus: 47 protons and 60 neutrons
🔹Electron Configuration: [Kr] 4d105s1
🔹d-block
🔹Family: Copper

Physical properties

🔸Melting point: 961,780°C
🔸Boiling point: 2 162°C
🔸Atomic radius (calculated): 165 pm
🔸Group: Transition metals
🔸Stable nucleus
🔸Ionization Energy (1st): 7,576 eV
🔸Electron Affinity: 1,302 eV
🔸Brinell scale: 24,5 MPa

Chemical properties

🟢 Electronegativity: 1,93

Context

💠Year Discovered: 3000 BC
💠Used in the past as a currency, now used in jewelry.
 
×

Cadmium

Structure

🔹Nucleus: 48 protons and 66 neutrons
🔹Electron Configuration: [Kr] 4d105s2
🔹d-block
🔹Family: Zinc

Physical properties

🔸Melting point: 321,07°C
🔸Boiling point: 766,9°C
🔸Atomic radius (calculated): 161 pm
🔸Group: Transition metals
🔸Stable nucleus
🔸Ionization Energy (1st): 8,994 eV
🔸Electron Affinity: 0 eV
🔸Brinell scale: 203 MPa

Chemical properties

🟢 Electronegativity: 1,69

Context

💠Year Discovered: 1817
💠Used in batteries and pigments in paints.
 
×

Indium

Structure

🔹Nucleus: 49 protons and 66 neutrons
🔹Electron Configuration: [Kr] 4d105s25p1
🔹p-block
🔹Family: Boron

Physical properties

🔸Melting point: 156,60°C
🔸Boiling point: 2 072°C
🔸Atomic radius (calculated): 156 pm
🔸Group: Metals
🔸Stable nucleus
🔸Ionization Energy (1st): 5,786 eV
🔸Electron Affinity: 0,300 eV
🔸Brinell scale: 8,83 MPa

Chemical properties

🟢 Electronegativity: 1,78

Context

💠Year Discovered: 1863
💠Mainly used to make touch screens, flatscreen TVs and solar panels.
 
×

Tin

Structure

🔹Nucleus: 50 protons and 70 neutrons
🔹Electron Configuration: [Kr] 4d105s25p2
🔹p-block
🔹Family: Carbon

Physical properties

🔸Melting point: 231,93°C
🔸Boiling point: 2 602°C
🔸Atomic radius (calculated): 145 pm
🔸Group: Metals
🔸Stable nucleus
🔸Ionization Energy (1st): 7,334 eV
🔸Electron Affinity: 1,112 eV
🔸Brinell scale: 51 MPa

Chemical properties

🟢 Electronegativity: 1,96

Context

💠Year Discovered: 3000 BC
💠Used in cans and as an electronic solder for joining circuit boards.
 
×

Antimony

Structure

🔹Nucleus: 51 protons and 70 neutrons
🔹Electron Configuration: [Kr] 4d105s25p3
🔹p-block
🔹Family: Nitrogen

Physical properties

🔸Melting point: 630,63°C
🔸Boiling point: 1 587°C
🔸Atomic radius (calculated): 133 pm
🔸Group: Metalloids
🔸Stable nucleus
🔸Ionization Energy (1st): 8,64 eV
🔸Electron Affinity: 1,070 eV
🔸Brinell scale: 294 MPa

Chemical properties

🟢 Electronegativity: 2,05

Context

💠Year Discovered: 3000 BC
💠Flame retardant.
 
×

Tellurium

Structure

🔹Nucleus: 52 protons and 78 neutrons
🔹Electron Configuration: [Kr] 4d105s25p4
🔹p-block
🔹Family: Oxygen

Physical properties

🔸Melting point: 449,51°C
🔸Boiling point: 987,9°C
🔸Atomic radius (calculated): 123 pm
🔸Group: Metalloids
🔸Stable nucleus
🔸Ionization Energy (1st): 9,010 eV
🔸Electron Affinity: 1,971 eV
🔸Brinell scale: 180 MPa

Chemical properties

🟢 Electronegativity: 2,1

Context

💠Year Discovered: 1783
💠Used in solar cells, rewritable CDs and alloys.
 
×

Iodine

Structure

🔹Nucleus: 53 protons and 74 neutrons
🔹Electron Configuration: [Kr] 4d105s25p5
🔹p-block
🔹Family: Halogens

Physical properties

🔸Melting point: 113,70°C
🔸Boiling point: 184,3°C
🔸Atomic radius (calculated): 115 pm
🔸Group: Nonmetals
🔸Stable nucleus
🔸Ionization Energy (1st): 10,451 eV
🔸Electron Affinity: 3,060 eV
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: 2,66

Context

💠Year Discovered: 1811
💠Used in medicine and as a disinfectant.
 
×

Xenon

Xenon gas placed in a high voltage electric field

Structure

🔹Nucleus: 54 protons and 75 neutrons
🔹Electron Configuration: [Kr] 4d105s25p6
🔹p-block
🔹Family: Noble gases

Physical properties

🔸Melting point: -111,8°C
🔸Boiling point: -108,0°C
🔸Atomic radius (calculated): 108 pm
🔸Group: Nonmetals
🔸Stable nucleus
🔸Ionization Energy (1st): 12,130 eV
🔸Electron Affinity: 0 eV
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: 2,6

Context

💠Year Discovered: 1898
💠Used in lighting and anesthesia (due to its positive effects such as cardiovascular stability and cerebral protection).
 
×

Cesium

Structure

🔹Nucleus: 55 protons and 78 neutrons
🔹Electron Configuration: [Xe] 6s1
🔹s-block
🔹Family: Alkali metals

Physical properties

🔸Melting point: 28,440°C
🔸Boiling point: 671°C
🔸Atomic radius (calculated): 298 pm
🔸Group: Metals
🔸Stable nucleus
🔸Ionization Energy (1st): 3,894 eV
🔸Electron Affinity: 0,472 eV
🔸Brinell scale: 0,14 MPa

Chemical properties

🟢 Electronegativity: 0,79

Context

💠Year Discovered: 1860
💠Used in atomic clocks and drilling.
 
×

Barium

Structure

🔹Nucleus: 56 protons and 82 neutrons
🔹Electron Configuration: [Xe] 6s2
🔹s-block
🔹Family: Alkaline earth metals

Physical properties

🔸Melting point: 730°C
🔸Boiling point: 1 870°C
🔸Atomic radius (calculated): 253 pm
🔸Group: Metals
🔸Stable nucleus
🔸Ionization Energy (1st): 5,212 eV
🔸Electron Affinity: 0,1446 eV
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: 0,89

Context

💠Year Discovered: 1808
💠Used in drilling fluids.
 
×

Lanthanum

Structure

🔹Nucleus: 57 protons and 82 neutrons
🔹Electron Configuration: [Xe] 5d16s2
🔹f-block
🔹Family : Lanthanides

Physical properties

🔸Melting point: 919,9°C
🔸Boiling point: 3 464°C
🔸Atomic radius (calculated): unknown
🔸Group: Transition metals
🔸Stable nucleus
🔸Ionization Energy (1st): 5,577 eV
🔸Electron Affinity: 0,50 eV
🔸Brinell scale: 363 MPa

Chemical properties

🟢 Electronegativity: 1,10

Context

💠Year Discovered: 1839
💠Used in alloys (including in lighter flints).
 
×

Cerium

Structure

🔹Nucleus: 58 protons and 82 neutrons
🔹Electron Configuration: [Xe] 4f15d16s2
🔹f-block
🔹Family : Lanthanides

Physical properties

🔸Melting point: 797,9°C
🔸Boiling point: 3 360°C
🔸Atomic radius (calculated): unknown
🔸Group: Transition metals
🔸Stable nucleus
🔸Ionization Energy (1st): 5,539 eV
🔸Electron Affinity: 0,52 eV
🔸Brinell scale: 412 MPa

Chemical properties

🟢 Electronegativity: 1,12

Context

💠Year Discovered: 1803
💠Used as a pigment.
 
×

Praseodymium

Structure

🔹Nucleus: 59 protons and 82 neutrons
🔹Electron Configuration: [Xe] 4f36s2
🔹f-block
🔹Family : Lanthanides

Physical properties

🔸Melting point: 930,9°C
🔸Boiling point: 3 290°C
🔸Atomic radius (calculated): 247 pm
🔸Group: Transition metals
🔸Stable nucleus
🔸Ionization Energy (1st): 5,46 eV
🔸Electron Affinity: 0,52 eV
🔸Brinell scale: 481 MPa

Chemical properties

🟢 Electronegativity: 1,13

Context

💠Year Discovered: 1885
💠Catalyst in the polishing of glass.
 
×

Neodymium

Structure

🔹Nucleus: 60 protons and 82 neutrons
🔹Electron Configuration: [Xe] 4f46s2
🔹f-block
🔹Family : Lanthanides

Physical properties

🔸Melting point: 1 021°C
🔸Boiling point: 3 100°C
🔸Atomic radius (calculated): 206 pm
🔸Group: Transition metals
🔸Stable nucleus
🔸Ionization Energy (1st): 5,525 eV
🔸Electron Affinity: 0,52 eV
🔸Brinell scale: 265 MPa

Chemical properties

🟢 Electronegativity: 1,14

Context

💠Year Discovered: 1885
💠Used to make lasers.
 
×

Promethium

Structure

🔹Nucleus: 61 protons and 85 neutrons
🔹Electron Configuration: [Xe] 4f56s2
🔹f-block
🔹Family : Lanthanides

Physical properties

🔸Melting point: 1 100°C
🔸Boiling point: 3 000°C
🔸Atomic radius (calculated): 205 pm
🔸Group: Transition metals
🔸Radioactive nucleus
🔸Ionization Energy (1st): 5,60 eV
🔸Electron Affinity: 0,52 eV
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: N/A

Context

💠Year Discovered: 1945
💠Used in nuclear batteries.
 
×

Samarium

Structure

🔹Nucleus: 62 protons and 90 neutrons
🔹Electron Configuration: [Xe] 4f66s2
🔹f-block
🔹Family : Lanthanides

Physical properties

🔸Melting point: 1 072°C
🔸Boiling point: 1 803°C
🔸Atomic radius (calculated): 238 pm
🔸Group: Transition metals
🔸Stable nucleus
🔸Ionization Energy (1st): 5,643 eV
🔸Electron Affinity: 0,52 eV
🔸Brinell scale: 441 MPa

Chemical properties

🟢 Electronegativity: 1,17

Context

💠Year Discovered: 1879
💠Used in the control rods of nuclear reactors.
 
×

Europium

Structure

🔹Nucleus: 63 protons and 90 neutrons
🔹Electron Configuration: [Xe] 4f76s2
🔹f-block
🔹Family : Lanthanides

Physical properties

🔸Melting point: 821,9°C
🔸Boiling point: 1 500°C
🔸Atomic radius (calculated): 231 pm
🔸Group: Transition metals
🔸Stable nucleus
🔸Ionization Energy (1st): 5,670 eV
🔸Electron Affinity: 0,52 eV
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: N/A

Context

💠Year Discovered: 1901
💠Excellent at absorbing neutrons. Also used in red phosphors.
 
×

Gadolinium

Structure

🔹Nucleus: 64 protons and 94 neutrons
🔹Electron Configuration: [Xe] 4f75d16s2
🔹f-block
🔹Family : Lanthanides

Physical properties

🔸Melting point: 1 313°C
🔸Boiling point: 3 250°C
🔸Atomic radius (calculated): 233 pm
🔸Group: Transition metals
🔸Stable nucleus
🔸Ionization Energy (1st): 6,150 eV
🔸Electron Affinity: 0,52 eV
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: 1,20

Context

💠Year Discovered: 1880
💠Used in MRI scans to improve the clarity of the images or pictures.
 
×

Terbium

Structure

🔹Nucleus: 65 protons and 94 neutrons
🔹Electron Configuration: [Xe] 4f96s2
🔹f-block
🔹Family : Lanthanides

Physical properties

🔸Melting point: 1 356°C
🔸Boiling point: 3 230°C
🔸Atomic radius (calculated): 225 pm
🔸Group: Transition metals
🔸Stable nucleus
🔸Ionization Energy (1st): 5,864 eV
🔸Electron Affinity: 0,52 eV
🔸Brinell scale: 667 MPa

Chemical properties

🟢 Electronegativity: N/A

Context

💠Year Discovered: 1843
💠Used in laser devices. Due to its luminescence it is used in colour phosphors in lighting. It is also used in euro bank notes to prevent forgeries.
 
×

Dysprosium

Structure

🔹Nucleus: 66 protons and 98 neutrons
🔹Electron Configuration: [Xe] 4f106s2
🔹f-block
🔹Family : Lanthanides

Physical properties

🔸Melting point: 1 412°C
🔸Boiling point: 2 567°C
🔸Atomic radius (calculated): 228 pm
🔸Group: Transition metals
🔸Stable nucleus
🔸Ionization Energy (1st): 5,939 eV
🔸Electron Affinity: 0,52 eV
🔸Brinell scale: 500 MPa

Chemical properties

🟢 Electronegativity: 1,22

Context

💠Year Discovered: 1886
💠Used in nuclear reactors, laser materials.
 
×

Holmium

Structure

🔹Nucleus: 67 protons and 98 neutrons
🔹Electron Configuration: [Xe] 4f116s2
🔹f-block
🔹Family : Lanthanides

Physical properties

🔸Melting point: 1 474°C
🔸Boiling point: 2 700°C
🔸Atomic radius (calculated): 226 pm
🔸Group: Transition metals
🔸Stable nucleus
🔸Ionization Energy (1st): 6,022 eV
🔸Electron Affinity: 0,52 eV
🔸Brinell scale: 746 MPa

Chemical properties

🟢 Electronegativity: 1,23

Context

💠Year Discovered: 1878
💠Used in nuclear reactors for nuclear control rods. Holmium oxide is used as yellow gas colouring.
 
×

Erbium

Structure

🔹Nucleus: 68 protons and 98 neutrons
🔹Electron Configuration: [Xe] 4f126s2
🔹f-block
🔹Family : Lanthanides

Physical properties

🔸Melting point: 1 497°C
🔸Boiling point: 2 868°C
🔸Atomic radius (calculated): 226 pm
🔸Group: Transition metals
🔸Stable nucleus
🔸Ionization Energy (1st): 6,108 eV
🔸Electron Affinity: 0,52 eV
🔸Brinell scale: 814 MPa

Chemical properties

🟢 Electronegativity: 1,24

Context

💠Year Discovered: 1842
💠Used in amplifiers and lasers (for optical fiber).
 
×

Thulium

Structure

🔹Nucleus: 69 protons and 100 neutrons
🔹Electron Configuration: [Xe] 4f136s2
🔹f-block
🔹Family : Lanthanides

Physical properties

🔸Melting point: 1 545°C
🔸Boiling point: 1 950°C
🔸Atomic radius (calculated): 222 pm
🔸Group: Transition metals
🔸Stable nucleus
🔸Ionization Energy (1st): 6,184 eV
🔸Electron Affinity: 0,52 eV
🔸Brinell scale: 471 MPa

Chemical properties

🟢 Electronegativity: 1,25

Context

💠Year Discovered: 1879
💠Used as a source of radiation from portable X-ray devices and in nuclear reactions.
 
×

Ytterbium

Structure

🔹Nucleus: 70 protons and 104 neutrons
🔹Electron Configuration: [Xe] 4f146s2
🔹f-block
🔹Family : Lanthanides

Physical properties

🔸Melting point: 818,9°C
🔸Boiling point: 1 196°C
🔸Atomic radius (calculated): 222 pm
🔸Group: Transition metals
🔸Stable nucleus
🔸Ionization Energy (1st): 6,254 eV
🔸Electron Affinity: 0,52 eV
🔸Brinell scale: 343 MPa

Chemical properties

🟢 Electronegativity: N/A

Context

💠Year Discovered: 1878
💠Used in memory devices and tuneable lasers.
 
×

Lutetium

Structure

🔹Nucleus: 71 protons and 104 neutrons
🔹Electron Configuration: [Xe] 4f145d16s2
🔹d-block
🔹Family : Lanthanides

Physical properties

🔸Melting point: 1 663°C
🔸Boiling point: 3 402°C
🔸Atomic radius (calculated): 217 pm
🔸Group: Transition metals
🔸Stable nucleus
🔸Ionization Energy (1st): 5,426 eV
🔸Electron Affinity: 0,52 eV
🔸Brinell scale: 893 MPa

Chemical properties

🟢 Electronegativity: 1,27

Context

💠Year Discovered: 1907
💠Catalyst.
 
×

Hafnium

Structure

🔹Nucleus: 72 protons and 108 neutrons
🔹Electron Configuration: [Xe] 4f145d26s2
🔹d-block
🔹Family: Titanium

Physical properties

🔸Melting point: 2 233°C
🔸Boiling point: 4 603°C
🔸Atomic radius (calculated): 208 pm
🔸Group: Transition metals
🔸Stable nucleus
🔸Ionization Energy (1st): 6,825 eV
🔸Electron Affinity: 0 eV
🔸Brinell scale: 1700 MPa

Chemical properties

🟢 Electronegativity: 1,3

Context

💠Year Discovered: 1923
💠Good neutron absorber used in nuclear reactors.
 
×

Tantalum

Structure

🔹Nucleus: 73 protons and 108 neutrons
🔹Electron Configuration: [Xe] 4f145d36s2
🔹d-block
🔹Family: Vanadium

Physical properties

🔸Melting point: 3 017°C
🔸Boiling point: 5 458°C
🔸Atomic radius (calculated): 200 pm
🔸Group: Transition metals
🔸Stable nucleus
🔸Ionization Energy (1st): 7,89 eV
🔸Electron Affinity: 0,32 eV
🔸Brinell scale: 800 MPa

Chemical properties

🟢 Electronegativity: 1,5

Context

💠Year Discovered: 1802
💠Used in high temperature resistant alloys.
 
×

Tungsten

Structure

🔹Nucleus: 74 protons and 110 neutrons
🔹Electron Configuration: [Xe] 4f145d46s2
🔹d-block
🔹Family: Chromium

Physical properties

🔸Melting point: 3 422°C
🔸Boiling point: 5 555°C
🔸Atomic radius (calculated): 193 pm
🔸Group: Transition metals
🔸Stable nucleus
🔸Ionization Energy (1st): 7,98 eV
🔸Electron Affinity: 0,815 eV
🔸Brinell scale: 2570 MPa

Chemical properties

🟢 Electronegativity: 2,36

Context

💠Year Discovered: 1783
💠Used as filaments in light bulbs.
 
×

Rhenium

Structure

🔹Nucleus: 75 protons and 112 neutrons
🔹Electron Configuration: [Xe] 4f145d56s2
🔹d-block
🔹Family: Manganese

Physical properties

🔸Melting point: 3 186°C
🔸Boiling point: 5 596°C
🔸Atomic radius (calculated): 188 pm
🔸Group: Transition metals
🔸Stable nucleus
🔸Ionization Energy (1st): 7,88 eV
🔸Electron Affinity: 0,150 eV
🔸Brinell scale: 1320 MPa

Chemical properties

🟢 Electronegativity: 1,9

Context

💠Year Discovered: 1925
💠Really hard and heat resistant metal (has the third highest melting point and the highest boiling point).
 
×

Osmium

Structure

🔹Nucleus: 76 protons and 116 neutrons
🔹Electron Configuration: [Xe] 4f145d66s2
🔹d-block
🔹Family: Iron

Physical properties

🔸Melting point: 3 033°C
🔸Boiling point: 5 012°C
🔸Atomic radius (calculated): 185 pm
🔸Group: Transition metals
🔸Stable nucleus
🔸Ionization Energy (1st): 8,71 eV
🔸Electron Affinity: 1,100 eV
🔸Brinell scale: 3920 MPa

Chemical properties

🟢 Electronegativity: 2,2

Context

💠Year Discovered: 1803
💠Used to produce hard alloys for pen tips and electric contacts.
 
×

Iridium

Structure

🔹Nucleus: 77 protons and 116 neutrons
🔹Electron Configuration: [Xe] 4f145d76s2
🔹d-block
🔹Family: Cobalt

Physical properties

🔸Melting point: 2 466°C
🔸Boiling point: 4 428°C
🔸Atomic radius (calculated): 180 pm
🔸Group: Transition metals
🔸Stable nucleus
🔸Ionization Energy (1st): 9,12 eV
🔸Electron Affinity: 1,57 eV
🔸Brinell scale: 1670 MPa

Chemical properties

🟢 Electronegativity: 2,20

Context

💠Year Discovered: 1803
💠It was used in making the standard meter bar.
 
×

Platinum

Structure

🔹Nucleus: 78 protons and 117 neutrons
🔹Electron Configuration: [Xe] 4f145d96s1
🔹d-block
🔹Family: Nickel

Physical properties

🔸Melting point: 1 768,3°C
🔸Boiling point: 3 825°C
🔸Atomic radius (calculated): 177 pm
🔸Group: Transition metals
🔸Stable nucleus
🔸Ionization Energy (1st): 9,02 eV
🔸Electron Affinity: 2,128 eV
🔸Brinell scale: 392 MPa

Chemical properties

🟢 Electronegativity: 2,28

Context

💠Year Discovered: 1735
💠Used in electronics and jewelry.
 
×

Gold

Structure

🔹Nucleus: 79 protons and 118 neutrons
🔹Electron Configuration: [Xe] 4f145d106s1
🔹d-block
🔹Family: Copper

Physical properties

🔸Melting point: 1 064,18°C
🔸Boiling point: 2 856°C
🔸Atomic radius (calculated): 174 pm
🔸Group: Transition metals
🔸Stable nucleus
🔸Ionization Energy (1st): 9,225 eV
🔸Electron Affinity: 2,309 eV
🔸Brinell scale: 25 MPa

Chemical properties

🟢 Electronegativity: 2,54

Context

💠Year Discovered: 2500 BC
💠Currency, used in jewelry.
 
×

Mercury

Structure

🔹Nucleus: 80 protons and 122 neutrons
🔹Electron Configuration: [Xe] 4f145d106s2
🔹d-block
🔹Family: Zinc

Physical properties

🔸Melting point: -38,830°C
🔸Boiling point: 356,73°C
🔸Atomic radius (calculated): 171 pm
🔸Group: Transition metals
🔸Stable nucleus
🔸Ionization Energy (1st): 10,438 eV
🔸Electron Affinity: 0 eV
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: 2,0

Context

💠Year Discovered: 1500 BC
💠Only metal that is liquid at room temperature. Used in the past in thermometers but is highly toxic.
 
×

Thallium

Structure

🔹Nucleus: 81 protons and 124 neutrons
🔹Electron Configuration: [Xe] 4f145d106s26p1
🔹p-block
🔹Family: Boron

Physical properties

🔸Melting point: 304°C
🔸Boiling point: 1 473°C
🔸Atomic radius (calculated): 156 pm
🔸Group: Metals
🔸Stable nucleus
🔸Ionization Energy (1st): 6,109 eV
🔸Electron Affinity: 0,199 eV
🔸Brinell scale: 26,4 MPa

Chemical properties

🟢 Electronegativity: 1,62

Context

💠Year Discovered: 1861
💠Tasteless and odorless, it has been used as a difficult to detect deadly poison.
 
×

Lead

Structure

🔹Nucleus: 82 protons and 126 neutrons
🔹Electron Configuration: [Xe] 4f145d106s26p2
🔹p-block
🔹Family: Carbon

Physical properties

🔸Melting point: 327,46°C
🔸Boiling point: 1 749°C
🔸Atomic radius (calculated): 154 pm
🔸Group: Metals
🔸Stable nucleus
🔸Ionization Energy (1st): 7,417 eV
🔸Electron Affinity: 0,364 eV
🔸Brinell scale: 38,3 MPa

Chemical properties

🟢 Electronegativity: 2,33

Context

💠Year Discovered: 4000 BC
💠Widely used: pipes, ammunitions, batteries, radiation shielding (though it is toxic so becoming less used). Can come from Uranium by atomic decay.
 
×

Bismuth

Structure

🔹Nucleus: 83 protons and 126 neutrons
🔹Electron Configuration: [Xe] 4f145d106s26p3
🔹p-block
🔹Family: Nitrogen

Physical properties

🔸Melting point: 271,3°C
🔸Boiling point: 1 564°C
🔸Atomic radius (calculated): 143 pm
🔸Group: Metals
🔸Stable nucleus
🔸Ionization Energy (1st): 7,29 eV
🔸Electron Affinity: 0,945 eV
🔸Brinell scale: 94,2 MPa

Chemical properties

🟢 Electronegativity: 2,02

Context

💠Year Discovered: 1400 BC
💠Used in fire-detection system, automatic fire-sprinkler systems. Used as a replacement of toxic lead in plumbing, bullets and alloys.
 
×

Polonium

Structure

🔹Nucleus: 84 protons and 126 neutrons
🔹Electron Configuration: [Xe] 4f145d106s26p4
🔹p-block
🔹Family: Oxygen

Physical properties

🔸Melting point: 255°C
🔸Boiling point: 961,9°C
🔸Atomic radius (calculated): 135 pm
🔸Group: Metalloids
🔸Radioactive nucleus
🔸Ionization Energy (1st): 8,417 eV
🔸Electron Affinity: 1,900 eV
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: 2,0

Context

💠Year Discovered: 1898
💠Used in antistatic devices and for research purposes.
 
×

Astatine

Illustration only

Structure

🔹Nucleus: 85 protons and 125 neutrons
🔹Electron Configuration: [Xe] 4f145d106s26p5
🔹p-block
🔹Family: Halogens

Physical properties

🔸Melting point: 302°C
🔸Boiling point: 350°C
🔸Atomic radius (calculated): 127 pm
🔸Group: Nonmetals
🔸Radioactive nucleus
🔸Ionization Energy (1st): 9,22 eV
🔸Electron Affinity: 2,799 eV
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: 2,2

Context

💠Year Discovered: 1940
💠Half-life: 8 hours.
 
×

Radon

Illustration only of what Radon gas would appear like if placed in a high voltage electric field

Structure

🔹Nucleus: 86 protons and 136 neutrons
🔹Electron Configuration: [Xe] 4f145d106s26p6
🔹p-block
🔹Family: Noble gases

Physical properties

🔸Melting point: -71,1°C
🔸Boiling point: -61,85°C
🔸Atomic radius (calculated): 120 pm
🔸Group: Nonmetals
🔸Radioactive nucleus
🔸Ionization Energy (1st): 10,75 eV
🔸Electron Affinity: 0 eV
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: N/A

Context

💠Year Discovered: 1900
💠Radioactive but chemically inert (doesn’t react with other elements), used in cancer therapy.
 
×

Francium

Structure

🔹Nucleus: 87 protons and 136 neutrons
🔹Electron Configuration: [Rn] 7s1
🔹s-block
🔹Family: Alkali metals

Physical properties

🔸Melting point: 20,9°C
🔸Boiling point: 650°C
🔸Atomic radius (calculated): unknown
🔸Group: Metals
🔸Radioactive nucleus
🔸Ionization Energy (1st): 3,94 eV
🔸Electron Affinity: unknown
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: 0,7

Context

💠Year Discovered: 1939
💠Used for diagnostics for curing cancer.
 
×

Radium

Structure

🔹Nucleus: 88 protons and 138 neutrons
🔹Electron Configuration: [Rn] 7s2
🔹s-block
🔹Family: Alkaline earth metals

Physical properties

🔸Melting point: 700°C
🔸Boiling point: 1 737°C
🔸Atomic radius (calculated): unknown
🔸Group: Metals
🔸Radioactive nucleus
🔸Ionization Energy (1st): 5,279 eV
🔸Electron Affinity: unknown
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: 0,9

Context

💠Year Discovered: 1898
💠Luminescent. In the past, it was used for clocks and "magic medications" until people discovered it was dangerous…
 
×

Actinium

Structure

🔹Nucleus: 89 protons and 138 neutrons
🔹Electron Configuration: [Rn] 6d17s2
🔹f-block
🔹Family : Actinides

Physical properties

🔸Melting point: 1 050°C
🔸Boiling point: 3 200°C
🔸Atomic radius (calculated): unknown
🔸Group: Transition metals
🔸Radioactive nucleus
🔸Ionization Energy (1st): 5,17 eV
🔸Electron Affinity: unknown
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: 1,1

Context

💠Year Discovered: 1899
💠Used as a source of radiation.
 
×

Thorium

Structure

🔹Nucleus: 90 protons and 142 neutrons
🔹Electron Configuration: [Rn] 6d27s2
🔹f-block
🔹Family : Actinides

Physical properties

🔸Melting point: 1 750°C
🔸Boiling point: 4 820°C
🔸Atomic radius (calculated): unknown
🔸Group: Transition metals
🔸Radioactive nucleus
🔸Ionization Energy (1st): 6,08 eV
🔸Electron Affinity: unknown
🔸Brinell scale: 400 MPa

Chemical properties

🟢 Electronegativity: 1,3

Context

💠Year Discovered: 1829
💠Used as a nuclear fuel.
 
×

Protactinium

Structure

🔹Nucleus: 91 protons and 140 neutrons
🔹Electron Configuration: [Rn] 5f26d17s2
🔹f-block
🔹Family : Actinides

Physical properties

🔸Melting point: 1 572°C
🔸Boiling point: 4 000°C
🔸Atomic radius (calculated): unknown
🔸Group: Transition metals
🔸Radioactive nucleus
🔸Ionization Energy (1st): 5,89 eV
🔸Electron Affinity: unknown
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: 1,5

Context

💠Year Discovered: 1913
💠Half-life: 1.17 minutes.
 
×

Uranium

Structure

🔹Nucleus: 92 protons and 146 neutrons
🔹Electron Configuration: [Rn] 5f36d17s2
🔹f-block
🔹Family : Actinides

Physical properties

🔸Melting point: 1 135°C
🔸Boiling point: 3 900°C
🔸Atomic radius (calculated): unknown
🔸Group: Transition metals
🔸Radioactive nucleus
🔸Ionization Energy (1st): 6,194 eV
🔸Electron Affinity: unknown
🔸Brinell scale: 2400 MPa

Chemical properties

🟢 Electronegativity: 1,38

Context

💠Year Discovered: 1789
💠Used as a nuclear fuel and in atomic bombs. Half-life: 4.5 billion years.
 
×

Neptunium

Structure

🔹Nucleus: 93 protons and 144 neutrons
🔹Electron Configuration: [Rn] 5f46d17s2
🔹f-block
🔹Family : Actinides

Physical properties

🔸Melting point: 644°C
🔸Boiling point: 4 000°C
🔸Atomic radius (calculated): unknown
🔸Group: Transition metals
🔸Radioactive nucleus
🔸Ionization Energy (1st): 6,265 eV
🔸Electron Affinity: unknown
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: 1,36

Context

💠Year Discovered: 1940
💠Good heat and electricity conductor.
 
×

Plutonium

Structure

🔹Nucleus: 94 protons and 150 neutrons
🔹Electron Configuration: [Rn] 5f67s2
🔹f-block
🔹Family : Actinides

Physical properties

🔸Melting point: 640°C
🔸Boiling point: 3 230°C
🔸Atomic radius (calculated): unknown
🔸Group: Transition metals
🔸Radioactive nucleus
🔸Ionization Energy (1st): 6,060 eV
🔸Electron Affinity: unknown
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: 1,28

Context

💠Year Discovered: 1940
💠Generates heat through its decay process. Used as a heat and power source for satellites. Also used in atomic bombs.
 
×

Americium

Structure

🔹Nucleus: 95 protons and 148 neutrons
🔹Electron Configuration: [Rn] 5f77s2
🔹f-block
🔹Family : Actinides

Physical properties

🔸Melting point: 1 176°C
🔸Boiling point: 2 011°C
🔸Atomic radius (calculated): unknown
🔸Group: Transition metals
🔸Radioactive nucleus
🔸Ionization Energy (1st): 5,99 eV
🔸Electron Affinity: unknown
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: 1,3

Context

💠Year Discovered: 1944
💠Widely used in household smoke detectors.
 
×

Curium

Glowing

Structure

🔹Nucleus: 96 protons and 151 neutrons
🔹Electron Configuration: [Rn] 5f76d17s2
🔹f-block
🔹Family : Actinides

Physical properties

🔸Melting point: 1 345°C
🔸Boiling point: 3 110°C
🔸Atomic radius (calculated): unknown
🔸Group: Transition metals
🔸Radioactive nucleus
🔸Ionization Energy (1st): 6,02 eV
🔸Electron Affinity: unknown
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: 1,3

Context

💠Year Discovered: 1944
💠Used as an energy source in satellites.
 
×

Berkelium

Structure

🔹Nucleus: 97 protons and 150 neutrons
🔹Electron Configuration: [Rn] 5f97s2
🔹f-block
🔹Family : Actinides

Physical properties

🔸Melting point: 1 050°C
🔸Boiling point unknown
🔸Atomic radius (calculated): unknown
🔸Group: Transition metals
🔸Radioactive nucleus
🔸Ionization Energy (1st): 6,23 eV
🔸Electron Affinity: unknown
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: 1,3

Context

💠Year Discovered: 1949
💠Half-life: 330 days.
 
×

Californium

Structure

🔹Nucleus: 98 protons and 153 neutrons
🔹Electron Configuration: [Rn] 5f107s2
🔹f-block
🔹Family : Actinides

Physical properties

🔸Melting point: 899,9°C
🔸Boiling point unknown
🔸Atomic radius (calculated): unknown
🔸Group: Transition metals
🔸Radioactive nucleus
🔸Ionization Energy (1st): 6,30 eV
🔸Electron Affinity: unknown
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: 1,3

Context

💠Year Discovered: 1950
💠Stong neutron emitter. Used in portable metal detectors, identifying gold and silver ores, to detect metal fatigue and stress in aeroplanes.
 
×

Einsteinium

Structure

🔹Nucleus: 99 protons and 155 neutrons
🔹Electron Configuration: [Rn] 5f117s2
🔹f-block
🔹Family : Actinides

Physical properties

🔸Melting point: 859,9°C
🔸Boiling point unknown
🔸Atomic radius (calculated): unknown
🔸Group: Transition metals
🔸Radioactive nucleus
🔸Ionization Energy (1st): 6,42 eV
🔸Electron Affinity: unknown
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: 1,3

Context

💠Year Discovered: 1952
💠Half-life: 20.47 days.
 
×

Fermium

Atomic bomb illustrating its use

Structure

🔹Nucleus: 100 protons and 157 neutrons
🔹Electron Configuration: [Rn] 5f127s2
🔹f-block
🔹Family : Actinides

Physical properties

🔸Melting point: 1 500°C
🔸Boiling point unknown
🔸Atomic radius (calculated): unknown
🔸Group: Transition metals
🔸Radioactive nucleus
🔸Ionization Energy (1st): 6,50 eV
🔸Electron Affinity: unknown
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: 1,3

Context

💠Year Discovered: 1952
💠Used in scientific research.
 
×

Mendelevium

Illustration only

Structure

🔹Nucleus: 101 protons and 157 neutrons
🔹Electron Configuration: [Rn] 5f137s2
🔹f-block
🔹Family : Actinides

Physical properties

🔸Melting point: 830°C
🔸Boiling point unknown
🔸Atomic radius (calculated): unknown
🔸Group: Transition metals
🔸Radioactive nucleus
🔸Ionization Energy (1st): 6,58 eV
🔸Electron Affinity: unknown
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: 1,3

Context

💠Year Discovered: 1955
💠Half-life: 51.5 days.
 
×

Nobelium

Structure

🔹Nucleus: 102 protons and 157 neutrons
🔹Electron Configuration: [Rn] 5f147s2
🔹f-block
🔹Family : Actinides

Physical properties

🔸Melting point: 830°C
🔸Boiling point unknown
🔸Atomic radius (calculated): unknown
🔸Group: Transition metals
🔸Radioactive nucleus
🔸Ionization Energy (1st): 6,65 eV
🔸Electron Affinity: unknown
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: 1,3

Context

💠Year Discovered: 1958
💠Half-life: 58 minutes.
 
×

Lawrencium

Structure

🔹Nucleus: 103 protons and 157 neutrons
🔹Electron Configuration: [Rn] 5f147s27p1
🔹d-block
🔹Family : Actinides

Physical properties

🔸Melting point: 1 600°C
🔸Boiling point unknown
🔸Atomic radius (calculated): unknown
🔸Group: Transition metals
🔸Radioactive nucleus
🔸Ionization Energy (1st): 4,87 eV
🔸Electron Affinity: unknown
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: N/A

Context

💠Year Discovered: 1961
💠Half-life: 3.6 hours.
 
×

Rutherfordium

Structure

🔹Nucleus: 104 protons and 157 neutrons
🔹Electron Configuration: [Rn] 5f146d27s2
🔹d-block
🔹Family: Titanium

Physical properties

🔸Melting point unknown
🔸Boiling point unknown
🔸Atomic radius (calculated): unknown
🔸Group: Transition metals
🔸Radioactive nucleus
🔸Ionization Energy (1st): 6,01 eV
🔸Electron Affinity: unknown
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: N/A

Context

💠Year Discovered: 1964
💠Synthetic. Half-life: 48 minutes.
 
×

Dubnium

Structure

🔹Nucleus: 105 protons and 157 neutrons
🔹Electron Configuration: [Rn] 5f146d37s2
🔹d-block
🔹Family: Vanadium

Physical properties

🔸Melting point unknown
🔸Boiling point unknown
🔸Atomic radius (calculated): unknown
🔸Group: Transition metals
🔸Radioactive nucleus
🔸Ionization Energy (1st): unknown
🔸Electron Affinity: unknown
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: N/A

Context

💠Year Discovered: 1967
💠Synthetic. Half-life: 16 hours.
 
×

Seaborgium

Structure

🔹Nucleus: 106 protons
🔹Electron Configuration: [Rn] 5f146d47s2
🔹d-block
🔹Family: Chromium

Physical properties

🔸Melting point unknown
🔸Boiling point unknown
🔸Atomic radius (calculated): unknown
🔸Group: Transition metals
🔸Radioactive nucleus
🔸Ionization Energy (1st): unknown
🔸Electron Affinity: unknown
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: N/A

Context

💠Year Discovered: 1974
💠Synthetic. Half-life: 2.4 minutes.
 
×

Bohrium

Structure

🔹Nucleus: 107 protons
🔹Electron Configuration: [Rn] 5f146d57s2
🔹d-block
🔹Family: Manganese

Physical properties

🔸Melting point unknown
🔸Boiling point unknown
🔸Atomic radius (calculated): unknown
🔸Group: Transition metals
🔸Radioactive nucleus
🔸Ionization Energy (1st): unknown
🔸Electron Affinity: unknown
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: N/A

Context

💠Year Discovered: 1981
💠Synthetic. Half-life: 61 seconds.
 
×

Hassium

Structure

🔹Nucleus: 108 protons
🔹Electron Configuration: [Rn] 5f146d67s2
🔹d-block
🔹Family: Iron

Physical properties

🔸Melting point unknown
🔸Boiling point unknown
🔸Atomic radius (calculated): unknown
🔸Group: Transition metals
🔸Radioactive nucleus
🔸Ionization Energy (1st): unknown
🔸Electron Affinity: unknown
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: N/A

Context

💠Year Discovered: 1984
💠Synthetic. Only a few atoms have ever been made. Half-life: 12 minutes.
 
×

Meitnerium

Structure

🔹Nucleus: 109 protons
🔹Electron Configuration: [Rn] 5f146d77s2
🔹d-block
🔹Family: Cobalt

Physical properties

🔸Melting point unknown
🔸Boiling point unknown
🔸Atomic radius (calculated): unknown
🔸Group: Transition metals
🔸Radioactive nucleus
🔸Ionization Energy (1st): unknown
🔸Electron Affinity: unknown
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: N/A

Context

💠Year Discovered: 1982
💠Synthetic. Half-life: Less than a second.
 
×

Darmstadium

Structure

🔹Nucleus: 110 protons
🔹Electron Configuration: [Rn] 5f146d87s2
🔹d-block
🔹Family: Nickel

Physical properties

🔸Melting point unknown
🔸Boiling point unknown
🔸Atomic radius (calculated): unknown
🔸Group: Transition metals
🔸Radioactive nucleus
🔸Ionization Energy (1st): unknown
🔸Electron Affinity: unknown
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: N/A

Context

💠Year Discovered: 1994
💠Synthetic. Half-life: 20 seconds.
 
×

Roentgenium

Structure

🔹Nucleus: 111 protons
🔹Electron Configuration: [Rn] 5f146d97s2
🔹d-block
🔹Family: Copper

Physical properties

🔸Melting point unknown
🔸Boiling point unknown
🔸Atomic radius (calculated): unknown
🔸Group: Transition metals
🔸Radioactive nucleus
🔸Ionization Energy (1st): unknown
🔸Electron Affinity: unknown
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: N/A

Context

💠Year Discovered: 1994
💠Synthetic. Half-life: 120 seconds.
 
×

Copernicium

Structure

🔹Nucleus: 112 protons
🔹Electron Configuration: [Rn] 5f146d107s2
🔹d-block
🔹Family: Zinc

Physical properties

🔸Melting point unknown
🔸Boiling point unknown
🔸Atomic radius (calculated): unknown
🔸Group: Metals
🔸Radioactive nucleus
🔸Ionization Energy (1st): unknown
🔸Electron Affinity: unknown
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: N/A

Context

💠Year Discovered: 1996
💠Synthetic. Only a few atoms have ever been made. Half-life: 30 seconds.
 
×

Nihonium

Structure

🔹Nucleus: 113 protons
🔹Electron Configuration: [Rn] 5f146d107s27p1
🔹p-block
🔹Family: Boron

Physical properties

🔸Melting point unknown
🔸Boiling point unknown
🔸Atomic radius (calculated): unknown
🔸Groupe : unknown
🔸Radioactive nucleus
🔸Ionization Energy (1st): unknown
🔸Electron Affinity: unknown
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: N/A

Context

💠Year Discovered: 2004
💠Synthetic. Half-life: 20 seconds.
 
×

Flerovium

Structure

🔹Nucleus: 114 protons
🔹Electron Configuration: [Rn] 5f146d107s27p2
🔹p-block
🔹Family: Carbon

Physical properties

🔸Melting point unknown
🔸Boiling point unknown
🔸Atomic radius (calculated): unknown
🔸Groupe : unknown
🔸Radioactive nucleus
🔸Ionization Energy (1st): unknown
🔸Electron Affinity: unknown
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: N/A

Context

💠Year Discovered: 1998
💠Synthetic. Half-life: 0.97 seconds.
 
×

Moscovium

Structure

🔹Nucleus: 115 protons
🔹Electron Configuration: [Rn] 5f146d107s27p3
🔹p-block
🔹Family: Nitrogen

Physical properties

🔸Melting point unknown
🔸Boiling point unknown
🔸Atomic radius (calculated): unknown
🔸Groupe : unknown
🔸Radioactive nucleus
🔸Ionization Energy (1st): unknown
🔸Electron Affinity: unknown
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: N/A

Context

💠Year Discovered: 2004
💠Synthetic. Half-life: 220 milliseconds.
 
×

Livermorium

Structure

🔹Nucleus: 116 protons
🔹Electron Configuration: [Rn] 5f146d107s27p4
🔹p-block
🔹Family: Oxygen

Physical properties

🔸Melting point unknown
🔸Boiling point unknown
🔸Atomic radius (calculated): unknown
🔸Groupe : unknown
🔸Radioactive nucleus
🔸Ionization Energy (1st): unknown
🔸Electron Affinity: unknown
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: N/A

Context

💠Year Discovered: 2000
💠Synthetic. Half-life: 53 milliseconds.
 
×

Tenessine

Structure

🔹Nucleus: 117 protons
🔹Electron Configuration: [Rn] 5f146d107s27p5
🔹p-block
🔹Family: Tennessine

Physical properties

🔸Melting point unknown
🔸Boiling point unknown
🔸Atomic radius (calculated): unknown
🔸Groupe : unknown
🔸Radioactive nucleus
🔸Ionization Energy (1st): unknown
🔸Electron Affinity: unknown
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: N/A

Context

💠Year Discovered: 2010
💠Synthetic. Half-life: 80 milliseconds.
 
×

Oganesson

Structure

🔹Nucleus: 118 protons
🔹Electron Configuration: [Rn] 5f146d107s27p6
🔹p-block
🔹Family: Oganesson

Physical properties

🔸Melting point unknown
🔸Boiling point unknown
🔸Atomic radius (calculated): unknown
🔸Groupe : unknown
🔸Radioactive nucleus
🔸Ionization Energy (1st): unknown
🔸Electron Affinity: unknown
🔸Brinell scale: N/A

Chemical properties

🟢 Electronegativity: N/A

Context

💠Year Discovered: 2006
💠Synthetic. Half-life: 0.89 milliseconds.
 

White : Stable elements
Yellow : Rare natural radioactive elements
Orange : Common natural radioactive elements
Red : Artificial radioactive elements

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