Thorium
| Element Name | Thorium |
|---|---|
| Symbol | Th |
| Atomic Number | 90 |
| Group | Rare Earth |
| Crystal Structure | Cubic: Face centered |
| Atomic Mass | 232.0381 |
| Electronic Configuration | 2,8,18,32,18,10,2 |
| Orbital Configuration | [Rn] 6d2 7s2 |
| Valency | 4 |
| Melting Point | 1750°C |
| Boiling Point | 4000°C |
| Electo-negativity | 1.3 |
| Covalent Radius | 1.65 Å |
