Atomic Properties
- Atomic Number
- 97
- Atomic Mass
- 247.0000 u
- Electron Configuration
- [Rn] 5f9 7s2
- Electronegativity
- 1.30
- Block
- f-block
- Group
- —
- Period
- 7
Physical Properties
- Phase (STP)
- solid
- Melting Point
- 1259.00 K
- Boiling Point
- 2900.00 K
- Density
- 14.7800 g/cm³
About Berkelium
Named after Berkeley, California; first made in cyclotron.
Isotopes of Berkelium
Berkelium has 0 naturally occurring isotopes, plus 2 notable radioactive isotopes.
| Isotope | Mass Number | Atomic Mass (u) | Abundance | Type |
|---|---|---|---|---|
| 247Bk | 247 | 247.0703073 | — | Radioactive |
| 249Bk | 249 | 249.0749877 | — | Radioactive |
Data source: NIH PubChem (aggregated from IUPAC, NIST)