| Attribute | Value |
|---|---|
| Symbol | Th |
| Standard state | Solid |
| Atomic mass | 232.038 u |
| Electron configuration | [Rn]7s²6d² |
| Oxidation states |
|
| Electronegativity (pauling scale) | 1.3 |
| Atomic radius (van der waals) | 237 pm |
| Ionization energy | 6.08 eV |
| Melting point | 2023 K |
| Boiling point | 5061 K |
| Density | 11.72 g/cm³ |
| Atomic number | 90 |
| Group name | Actinide |
| Discovered | 1828 year |
| Electron affinity | Add |