| Element | Indium | Symbol | In |
| Atomic Number | 49 | Molar Mass | 114.82 gmol-1 |
| Electron Configuration | [Kr]4d105s25p1 | Normal State | solid metal |
| Density @STP | 7.29 g cm-3 | Melting Point | 157oC |
| Boiling Point | 2072oC | Stable Isotopes | 113In, 115In |
| Atomic Radius | 167 pm | Ionic Radius | 72 (3+) pm |
| Electronegativity (Pauling) | 1.78 | Ionization Energy (1st) | 558 kJ mol-1 |
| Ionization Energy (2nd) | 1821 kJ mol-1 | Ionization Energy (3rd) | 2704 kJ mol-1 |
| Molar Heat Capacity | 26.7 J K-1mol-1 | Standard Molar Entropy | 57.8 J K-1mol-1 |
| Enthalpy of Fusion | 3.27 kJ mol-1 | Enthalpy of Vapourization | 226.4 kJ mol-1 |