Atomic Radii
Atomic Radius
Bohr Radius
Covalent Radius
Van der Waals
| Indium | |
| Electron Configuration | 2,8,18,18,3 |
| Electron Configuration | [Kr] 4d10 5s2 5p1 |
| Electronegativity | 1.78 |
| Enthalpy of Fusion | 3.27 kJ mol-1 |
| Enthalpy of Vaporisation | 231.8 kJ mol-1 |
| Heat Capacity | 26.74 J mol-1 K-1 |
| Thermal Conductivity | 81.8 W m-1 K-1 |
| Thermal Expansion | 32.1 μm m-1 K-1 |
| Magnetic ordering | No data |
| Electrical resistivity | 83.7 Ω m |
| Speed of sound | 1215 m s-1 |
| Young's modulus | 11 GPa |
| Mohs hardness | 1.2 |
| Brinell hardness | 8.83 MPa |
| Atomic Radii |
|
| Atomic Radius
|
155 pm |
| Bohr Radius
|
156 pm |
| Covalent Radius
|
144 pm |
| Van der Waals
|
193 pm |
| Oxidation States |
|
| Main
|
In+3 |
| Other
|
In+1, In+2 |
Ionisation Energies (kJ mol-1)  |
|
| M - M+ |
558.3 |
| M+ - M2+ |
1820.6 |
| M2+ - M3+ |
2704 |
| M3+ - M4+ |
5200 |
| M4+ - M5+ |
7400 |
| M5+ - M6+ |
9500 |
| M6+ - M7+ |
11700 |
| M7+ - M8+ |
13900 |
| M8+ - M9+ |
17200 |
| M9+ - M10+ |
19700 |