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Berkelium
Chemical Properties & Compounds
| Symbol | Atomic Number | Atomic Weight | Melting Point | Boiling Point | Phase | Density | Classification |
| Bk | 97 | 247 | 1050 °C | Unknown | Solid | 14 g/cm3 | Metal  |
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| General |
| Name, Symbol, Number |
berkelium, Bk, 97 |
| Chemical series |
Actinide |
| Group, Period, Block |
n/a, 7, f |
| Appearance |
unknown, probably silvery
white or metallic gray |
| Standard atomic weight |
(247) g·mol−1 |
| Electron configuration |
[Rn] 5f9 7s2 |
| Electrons per shell |
2, 8, 18, 32, 27, 8, 2 |
| Physical properties |
| Phase |
solid |
| Density (near r.t.) |
(alpha) 14.78 g·cm−3 |
| Density (near r.t.) |
(beta) 13.25 g·cm−3 |
| Melting point |
(beta) 1259 K
(986 °C, 1807 °F) |
| Atomic properties |
| Oxidation states |
3, 4 |
| Electronegativity |
1.3 (scale Pauling) |
| Ionization energies |
1st: 601 kJ/mol |
| Miscellaneous |
| Crystal structure |
hexagonal close-packed |
| Magnetic ordering |
no data |
| Thermal conductivity |
(300 K) 10 W·m−1·K−1 |
| CAS registry number |
7440-40-6 |
| Selected isotopes |
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| References |
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Berkelium Compounds
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Source: Wikipedia article Berkelium
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Chemistry Quick Facts