Atomic Properties of Bk
- Atomic Number of Bk
- 97
- Atomic Mass of Bk
- 247.0000 u
- Electron Configuration
- [Rn] 5f9 7s2
- Electronegativity
- 1.30
- Block
- f-block
- Group
- —
- Period
- 7
Berkelium (Bk) is element 97 on the periodic table. Atomic mass of Bk: 247.0000 u. Bk is in period 7. Melting point of Bk: 1259.00 K.Density of Bk: 14.78 g/cm³.
Berkelium in everyday life and industry
No biological role. Would accumulate in bones like other actinides. Limited biological studies due to scarcity.
Discovered by G.T.Seaborg, S.G.Tompson, A.Ghiorso in United States, 1949
Name origin: Named after Berkeley, California the city of its discovery.
Radioactive metallic transuranic element. Belongs to actinoid series. Eight known isotopes, the most common Bk-247, has a half-life of 1.4*10^3 years. First produced by Glenn T. Seaborg and associates in 1949 by bombarding americium-241 with alpha particles.
Berkelium has 0 naturally occurring isotopes, plus 2 notable radioactive isotopes.
| Isotope | Atomic Mass (u) | Abundance | Half-Life | Decay Mode |
|---|---|---|---|---|
| 24797Bk (Bk-247)Berkelium-247 isotope | 247.0703073 | — | — | — |
| 24997Bk (Bk-249)Berkelium-249 isotope | 249.0749877 | — | — | — |
Data source: NIH PubChem (aggregated from IUPAC, NIST)
It has no significant commercial applications.
Some compounds have been made and studied. Made by bombarding americium with alpha particles.
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