Compare Elements
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Rb
Rubidium
#37 · Alkali Metal
| Mass | 85.468 u |
| Density | 1.532 g/cm³ |
| Melting | 312.46 K |
| Boiling | 961.0 K |
| Electronegativity | 0.82 |
| Ionization Energy | 403.0 kJ/mol |
| Atomic Radius | 248.0 pm |
| Block | s-block |
| State (RT) | Solid |
| Config | [Kr] 5s1 |