In
Indium
Element 49 · Post-transition metal · Period 5, Group 13
Solid · Discovered 1863
Atomic Properties
| Atomic Number | 49 |
| Atomic Mass | 114.818u |
| Electron Configuration | [Kr]5s2 4d10 5p1 |
| Electronegativity | 1.78Pauling |
| Atomic Radius | 193pm |
| Ionization Energy | 5.786eV |
| Electron Affinity | 0.3eV |
| Oxidation States | +3 |
Physical Properties
| Standard State | Solid |
| Melting Point | 429.75K |
| Boiling Point | 2345K |
| Density | 7.31g/cm³ |
| Group Block | Post-transition metal |
| Year Discovered | 1863 |