Difference between revisions of "Rubidium"
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Latest revision as of 04:31, 21 October 2008
| Rubidium | |
|---|---|
| Rb | |
| In situ availability: | |
| Necessity: | |
| Atomic number: | 37 |
| Atomic mass: | 85.4678 |
| group: | 1 |
| period: | 5 |
| normal phase: | Solid |
| series: | Alkali metals |
| density: | 1.532 g/cm3 |
| melting point: | 312.46K, 39.31°C, 102.76°F |
| boiling point: | 961K, 688°C, 1270°F |
| N/A ← K → Ca | |
| Kr ← Rb → Sr | |
| N/A ← Cs → Ba | |
| Atomic radius (pm): | 235 |
| Bohr radius (pm): | 265 |
| Covalent radius (pm): | 211 |
| Van der Waals radius (pm): | 244 |
| ionic radius (pm): | (+1) 161 |
| 1st ion potential (eV): | 4.18 |
| Electron Configuration | |
| 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 5s1 | |
| Electrons Per Shell | |
| 2, 8, 18, 8, 1 | |
| Electronegativity: | 0.82 |
| Electron Affinity: | 0.49 |
| Oxidation states: | 1 |
| Magnetism: | ? |
| Crystal structure: | Body centered cubic |
Rubidium is a Alkali metal in group 1.
It has a Body centered cubic crystalline structure.
This element has a stable isotope of 85
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