Difference between revisions of "Fermium"
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{{Element | | {{Element | | ||
name=Fermium | | name=Fermium | | ||
| Line 11: | Line 12: | ||
series=Actinide | | series=Actinide | | ||
density= | | density= | | ||
| − | melts=1800K,<BR/> | + | melts=1800K,<BR/>1527°C,<BR/>2781°F | |
boils= | | boils= | | ||
isotopes=none | | isotopes=none | | ||
Revision as of 18:02, 25 October 2007
letobocdro
| Fermium | |
|---|---|
| Fm | |
| In situ availability: | |
| Necessity: | |
| Atomic number: | 100 |
| Atomic mass: | [257] |
| group: | 19 |
| period: | N/A |
| normal phase: | Solid |
| series: | Actinide |
| density: | |
| melting point: | 1800K, 1527°C, 2781°F |
| boiling point: | |
| Ho ← Er → Tm | |
| Es ← Fm → Md | |
| N/A ← N/A → N/A | |
| Atomic radius (pm): | |
| Bohr radius (pm): | |
| Covalent radius (pm): | |
| Van der Waals radius (pm): | |
| ionic radius (pm): | - |
| 1st ion potential (eV): | 6.50 |
| Electron Configuration | |
| 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 5f12 6s2 6p6 7s2 | |
| Electrons Per Shell | |
| 2, 8, 18, 32, 30, 8, 2 | |
| Electronegativity: | 1.3 |
| Electron Affinity: | - |
| Oxidation states: | 3 |
| Magnetism: | |
| Crystal structure: | |
Fermium is a Actinide metal.
It does not have any isotopes considered to be natural. Its longest-lived known isotope has an atomic number of 257.
This element has no stable isotopes.
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