97 Bk 247
Berkelium
Actinide
Berkelium (Bk) is a chemical element with atomic number 97, classified as a actinide. At room temperature it is a solid. It was discovered in 1949 by Glenn T. Seaborg et al..
Properties
- Atomic number
- 97
- Atomic mass
- 247 u
- Category
- Actinide
- Group
- 0
- Period
- 7
- Block
- f-block
- Electron configuration
- [Rn] 5f⁹ 7s²
- Phase at STP
- Solid
- Density
- 14.79 g/cm³
- Melting point
- 1259 K (985.9 °C)
- Boiling point
- 2900 K (2626.8 °C)
- Electronegativity
- 1.3
- Atomic radius
- 244 pm
- Ionization energy
- 6.198 eV
- Discovery
- 1949 · Glenn T. Seaborg et al.
Common uses
Research only
Did you know?
Named after Berkeley, California where it was discovered.