Uranium |
| Symbol | U |
|---|---|
| Latin name | Uranium |
| Atomic number | 92 |
| Period | 7 |
| Element category | Inner transition elements |
| Relative atomic mass | 238.0289 |
| Group | VI.B |
| Electronegativity | 1.7 |
| Oxidation numbers | 3, 1, 5, 6 |
| Electron configuration | 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p6 5f3 6d1 7s2 |
| Density [g/cm3] | 19.03 |
| State | Solid |
| Melting point [°C] | 1132.3 |
| Boiling point [°C] | 3900 |
| Thermal conductivity [W m-1K-1] | 27.6 |
| Heat capacity [J K-1g-1] | 0.12 |
| Discovery | 1789 |
| Hardness [Mohs scale] | 6.0 |
| Vickers hardness [MPa] | 1960 |
| Brinell hardness [MPa] | 2400 |
| Young's modulus [GPa] | 208 |
| Electrical conductivity [S m-1] | 3.6 · 10-6 |
| Shear modulus [GPa] | 111 |
| 1.st ionization energy [eV] | 6.1941 |
| Stable isotopes | 0 |
| Unstable isotopes | 15 |