Difference between revisions of "Chromium"
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Revision as of 20:37, 11 February 2007
| Chromium | |
|---|---|
| Cr | |
| In situ availability: | |
| Necessity: | |
| Atomic number: | 24 |
| Atomic mass: | 51.9961 |
| group: | 6 |
| period: | 4 |
| normal phase: | Solid |
| series: | Transition Metals |
| density: | 7.15 g/cm3 |
| melting point: | 2180K, 1907°C, 3465°F |
| boiling point: | 2944K, 2671°C, 4840°F |
| N/A ← N/A → N/A | |
| V ← Cr → Mn | |
| Nb ← Mo → Tc | |
| Atomic radius (pm): | 140 |
| Bohr radius (pm): | 166 |
| Covalent radius (pm): | 127 |
| Van der Waals radius (pm): | |
| ionic radius (pm): | (+3) 62 |
| 1st ion potential (eV): | 6.77 |
| Electron Configuration | |
| 1s2 2s2 2p6 3s2 3p6 3d5 4s1 | |
| Electrons Per Shell | |
| 2, 8, 13, 1 | |
| Electronegativity: | 1.66 |
| Electron Affinity: | 0.67 |
| Oxidation states: | 6, 3, 2 |
| Magnetism: | Antiferromagnetic w/Spin Density Wave |
| Crystal structure: | Body centered cubic |
Chromium is a Transition Metal in group 6.
It has a Body centered cubic crystalline structure.
This element has 4 stable isotopes: 50, 52, 53, and 54.
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