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