97 Bk
Actinide
Berkelium
Named after Berkeley.
Properties of Berkelium
- Atomic number (Z)
- 97
- Symbol
- Bk
- Atomic mass
- 247 g/mol
- Category
- Actinide
- Group
- 3
- Period
- 7
- Electron configuration
- [Rn] 5f⁹ 7s²
- Electronegativity (Pauling)
- 1.3
- Atomic radius
- —
- First ionization energy
- 601 kJ/mol
- Melting point
- 1259 K (985.9 °C)
- Boiling point
- 2900 K (2626.8 °C)
- Density
- 14.79 g/cm³
- Phase at 25 °C
- Solid
- Discovered
- Discovered in 1949