112 Cn
Unknown / predicted
Copernicium
Named after Copernicus.
Properties of Copernicium
- Atomic number (Z)
- 112
- Symbol
- Cn
- Atomic mass
- 285 g/mol
- Category
- Unknown / predicted
- Group
- 12
- Period
- 7
- Electron configuration
- [Rn] 5f¹⁴ 6d¹⁰ 7s²
- Electronegativity (Pauling)
- —
- Atomic radius
- —
- First ionization energy
- 1155 kJ/mol
- Melting point
- 283 K (9.9 °C)
- Boiling point
- 340 K (66.9 °C)
- Density
- 23.7 g/cm³
- Phase at 25 °C
- Liquid
- Discovered
- Discovered in 1996