Copernicium

Transition metal · 286.179 u · group 12, period 7

Copernicium · Cn

Atomic number112

SymbolCn

CategoryTransition metal

Standard stateSolid (predicted)

Group · Period · Block12 · 7 · d

Electron configuration[Rn]7s2 5f14 6d10 (predicted)

Atomic mass286.179 u

Atomic radius—

Protons / Neutrons / Electrons112 / 174 / 112

Shells (e⁻ per shell)2, 8, 18, 32, 32, 18, 2

Electronegativity (Pauling)—

Ionization energy—

Electron affinity—

Oxidation states2, 1, 0

Melting point—

Boiling point—

Density—

Year discovered1996

CPK color

#74c0fc

State at room temp (25 °C)

unknown

Position