U
92 actinide Generated with AI
Uranium
Symbol U
Atomic Mass 238.028913
Uranium is a chemical element with symbol U and atomic number 92. It is a silvery-white metal in the actinide series of the periodic table. A uranium atom has 92 protons and 92 electrons, of which 6 are valence electrons.
Properties
- Phase: Solid
- Density: 19.1 g/cm³
- Melting Point: 1405.3 K
- Boiling Point: 4404 K