92
U
Uranium
Uranium
Uranium (U)
Actinides · Solid · Period 7 · Group 3
Element Properties
- Atomic Number
- 92
- Symbol
- U
- Atomic Mass
- 238.0289
- Category
- Actinides
- Standard State
- Solid
- Period
- 7
- Group
- 3
- Electronegativity
- 1.38
- Atomic Radius
- 240
- Ionization Energy
- 6.19
- Electron Affinity
- —
- Oxidation States
- +6, +5, +4, +3
- Melting Point
- 1408 K (1134.85 °C)
- Boiling Point
- 4404 K (4130.85 °C)
- Density
- 18.95
- Electron Configuration
- [Rn]7s2 5f3 6d1
- Year Discovered
- 1789
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Frequently asked questions
What is the atomic number of Uranium?
The atomic number of Uranium is 92, which equals the number of protons in its nucleus.
What is the atomic mass of Uranium?
The atomic mass of Uranium is approximately 238.0289 u (one twelfth of the mass of a carbon-12 atom).
What is the electron configuration of Uranium?
The electron configuration of Uranium is [Rn]7s2 5f3 6d1.
Where is Uranium in the periodic table?
Uranium is located in period 7, group 3.
When was Uranium discovered?
Uranium was discovered in 1789.
Related elements
Same group
21
Sc
Scandium
44.956
39
Y
Yttrium
88.906
57
La
Lanthanum
138.905
58
Ce
Cerium
140.116
59
Pr
Praseodymium
140.908
60
Nd
Neodymium
144.24