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| Berkelium | Berkélium | Berkelij | Berkelio | Berkelium | ||||||||||||||||||||
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Bk Berkelium |
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- Berkelium was discovered by Stanley G. Thompson, Albert Ghiorso and Glenn T. Seaborg (USA) in 1949. Named after Berkeley, a city in California, home of the University of California, USA. It is synthetic radioactive metal.
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TRANSITION ELEMENT: ACTINIDE | |
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| Relative atomic mass: | [247] | Electronic configuration: | [Rn] 5f9 7s2 |
| Formal oxidation number: | +3 +4 | Electronegativities: | - |
| Thermal conductivity: | - W m-1 K-1 | Electrical resistivity (20 °C): | - μΩcm |
| Atomic radius: | 170 pm | Standard state (20 °C): | solid |
| Density (g dm-3): | 14790 (293 K) | Molar volume (cm3 mol-1): | 16.70 (293 K) |
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THERMAL PROPERTIES | |
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| Melting point: | 1050 °C | Heat of fusion: | - kJ mol-1 |
| Boiling point: | - °C | Heat of vaporization: | - kJ mol-1 |
| Critical temperature: | - °C | Heat of atomization: | 291 kJ mol-1 |
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IONIZATION ENERGIES AND ABUNDANCE | |
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| 1st ionization energy: | 601.11 kJ mol-1 | Abundance of element (air): | - ppm |
| 2nd ionization energy: | - kJ mol-1 | Abundance of element (Earth's crust): | - ppm |
| 3rd ionization energy: | - kJ mol-1 | Abundance of element (oceans): | - ppm |
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ISOTOPES | |
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Isotopes | Relative atomic mass | Abundance (%) |
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MINERALS AND USES | |
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- Berkelium was made by bombarding americium with alpha particles.
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REDUCTION POTENTIALS | |
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Balanced half-reaction | Eo / V | Annotation |
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