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
Frequently asked questions
What is Copernicium?
Copernicium (Cn) is an unknown / predicted, element number 112 on the periodic table. Named after Copernicus.
What is the atomic number and atomic mass of Copernicium?
Copernicium has atomic number 112 and an atomic mass of about 285 g/mol.
What is the electron configuration of Copernicium?
The electron configuration of Copernicium is [Rn] 5f¹⁴ 6d¹⁰ 7s².
Where is Copernicium on the periodic table?
Copernicium sits in group 12, period 7, and is classified as a unknown / predicted.