92 U 238.029
Uranium
actinide
Properties
- Atomic number
- 92
- Atomic mass
- 238.029 u
- Category
- actinide
- Group
- f-block
- Period
- 7
- Block
- f-block
- State (room temp)
- Solid
- Outer-shell electrons
- 2
- Electronegativity
- 1.38 (Pauling)
- Density
- 19.1 g/cm³
- Melting point
- 1132.15 °C
- Boiling point
- 4130.85 °C
Electron configuration
1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d¹⁰ 6p⁶ 7s² 5f³ 6d¹
Noble-gas shorthand: [Rn] 5f³ 6d¹ 7s²
Electrons per shell: 2, 8, 18, 32, 21, 9, 2 — that's 2 in the outermost shell.
About Uranium
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.
- Discovered by Martin Heinrich Klaproth
Position in the periodic table
Data compiled from Wikipedia, PubChem, and IUPAC. Source.