Characteristics of the element
| Symbol: Th |
| Name: Thorium |
| Latin name: Thorium |
| Atomic number: 90 |
| Atomic mass: 232,0381 |
| Melting point: 1700-1850 (°C) |
| Boiling point: 4000-4800 (°C) |
| Density 11,7 (g/cm 3 ) |
| Electronegativity: 1,1 |
| Oxidation number: VI |
| Number of neutrons: 142 |
| Crystal structure: Cubic |
| Chemical serie: Rare earth elements |
| Color: silver |
| Electron configuration: 2-8-18-32-18-10-2 |
| Year of discovery:: 1828 |
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Update: 26.11.25
Update: 26.11.25