Rubidium vs Indium
| Property | Rb Rubidium | In Indium |
|---|---|---|
| Atomic number | 37 | 49 |
| Symbol | Rb | In |
| Name | Rubidium | Indium |
| Category | alkali-metal | post-transition-metal |
| Standard Atomic Weight | 85.4678 u | 114.818 u |
| Period | 5 | 5 |
| Group | 1 | 13 |
| Block | s | p |
| Phase at STP | solid | solid |
| Electron configuration | [Kr]5s1 | [Kr]5s24d105p1 |
| Oxidation states | [-1, 1] | [-5, -2, -1, 0, 1, 2, 3] |
| Electronegativity (Pauling) | 0.82 | 1.78 |
| Electron affinity | 0.4859 eV | 0.3 eV |
| Density | 1530 kg/m³ | 7310 kg/m³ |
| Melting point | 39.31 °C | 156.6 °C |
| Boiling point | 687.85 °C | 2071.85 °C |
| Discovery year | 1861 | 1863 |