Difference between revisions of "Germanium"
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Latest revision as of 00:45, 28 September 2007
| Germanium | |
|---|---|
| Ge | |
| In situ availability: | trace |
| Necessity: | |
| Atomic number: | 32 |
| Atomic mass: | 72.61 |
| group: | 14 |
| period: | 4 |
| normal phase: | Solid |
| series: | Metalloids |
| density: | 5.323 g/cm3 |
| melting point: | 1211.40K, 938.25°C, 1720.85°F |
| boiling point: | 3106K, 2833°C, 5131°F |
| Al ← Si → P | |
| Ga ← Ge → As | |
| In ← Sn → Sb | |
| Atomic radius (pm): | 125 |
| Bohr radius (pm): | 125 |
| Covalent radius (pm): | 122 |
| Van der Waals radius (pm): | |
| ionic radius (pm): | (+4) 53 |
| 1st ion potential (eV): | 7.90 |
| Electron Configuration | |
| 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p2 | |
| Electrons Per Shell | |
| 2, 8, 18, 4 | |
| Electronegativity: | 2.01 |
| Electron Affinity: | 1.23 |
| Oxidation states: | 4 |
| Magnetism: | ? |
| Crystal structure: | Face centered cubic |
Germanium is a Metalloid in group 14.
It has a Face centered cubic crystalline structure.
This element has 5 stable isotopes: 70, 72, 73, 74, and 76.
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