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.
Experiment with the elements
Berkelium doesn't form any compounds in our lab yet, but the periodic table sandbox lets you combine dozens of other real elements into real compounds — water, table salt, ammonia and many more — with their true chemical formulas.