Difference between revisions of "Berkelium"
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phase=Solid | | phase=Solid | | ||
series=Actinide | | series=Actinide | | ||
| − | density=(alpha) 14.78 g/ | + | density=(alpha) 14.78 g/cm<SUP>3</SUP><BR/>(beta) 13.25 g/cm<SUP>3</SUP> | |
| − | melts=(beta)<BR/> | + | melts=(beta)<BR/>1259°K,<BR/>986°C,<BR/>1807°F | |
boils= | | boils= | | ||
isotopes=none | | isotopes=none | | ||
Latest revision as of 05:19, 16 May 2009
| Berkelium | |
|---|---|
| Bk | |
| In situ availability: | |
| Necessity: | |
| Atomic number: | 97 |
| Atomic mass: | [247] |
| group: | 19 |
| period: | N/A |
| normal phase: | Solid |
| series: | Actinide |
| density: | (alpha) 14.78 g/cm3 (beta) 13.25 g/cm3 |
| melting point: | (beta) 1259°K, 986°C, 1807°F |
| boiling point: | |
| Gd ← Tb → Dy | |
| Cm ← Bk → Cf | |
| N/A ← N/A → N/A | |
| Atomic radius (pm): | |
| Bohr radius (pm): | |
| Covalent radius (pm): | |
| Van der Waals radius (pm): | |
| ionic radius (pm): | (+3) 96 |
| 1st ion potential (eV): | 6.23 |
| Electron Configuration | |
| 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 5f9 6s2 6p6 7s2 | |
| Electrons Per Shell | |
| 2, 8, 18, 32, 27, 8, 2 | |
| Electronegativity: | 1.3 |
| Electron Affinity: | - |
| Oxidation states: | 4, 3 |
| Magnetism: | ? |
| Crystal structure: | Hexagonal |
Berkelium is a Actinide metal.
It has a Hexagonal crystalline structure.
It does not have any isotopes considered to be natural. Its longest-lived known isotope has an atomic number of 247.
This element has no stable isotopes.
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