Indium
Post-transition metal| Atomic number | 49 |
|---|---|
| Category | Post-transition metal |
| Atomic mass | 114.82 |
| Electron configuration | [Kr]4d¹⁰ 5s² 5p¹ |
| Oxidation states | +3 |
| Electronegativity | 1.78 |
| Melting point | 156.6 °C |
| Boiling point | 2,072 °C |
| Density | 7.31 g/cm³ |
| Crystal structure | Tetragonal |
| Group | 13 |
| Period | 5 |
| Block | p |
| Discovered | 1,863 |
| Crustal abundance | 0.25 ppm |