General Information About Uranium1. Element Name, Symbol: Uranium, U.
2. Atomic Number: 92. 3. Average Atomic Mass: 238.0289 amu. 4. Period, Block, Family: 7, f-block, Actinides. 5. Number of Protons, Neutrons, Electrons: 92 protons, 146 neutrons, 92 electrons. 6. Electron Configuration: [Rn] 7s^2 5f^4 7. Atomic Radius: 156 pm 8. Ionization Energy: 597.6 kj/mol 9. Electronegativity: 1.38 10. Valence Electrons: 2 11. Common Ions: U 3+, U 4+, UO2 +, UO2 2+ 12. Color, Texture, State at Room Temperature: metallic grey (black when left when oxidized), smooth, solid 13. Boiling Point: 4404 K, 4131 degrees Celsius 14. Melting Point: 1405.3 K, 1132 degrees Celsius |