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Uranium (U)

Element with atomic number 92, category: Actinide, a solid at room temperature.

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Element 92 of 118

Actinide

U

Uranium

Group 6, Period 7 (actinide series)

Atomic Number
92
Atomic Mass
238.029 u
State at Room Temperature
Solid

Common Uses

Nuclear fuel

Electron Diagram

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About Uranium

Uranium is a chemical element with the symbol U and atomic number 92, meaning every atom has 92 protons in its nucleus. It is classed as Actinide and is a solid at room temperature. Its atomic mass is about 238.029 atomic mass units (u).

On the periodic table, Uranium sits in group 6, period 7 (actinide series), which determines how many electron shells it has and how it tends to react with other elements.

Uses of Uranium

In daily life and industry, Uranium is used for Nuclear fuel. These uses are closely tied to the typical properties of elements in the Actinide category.

Electron Structure of Uranium

Using a simplified electron shell model (at most 2 electrons in the first shell, 8 in the second, 18 in the third, and so on), Uranium has 5 electron shells, with an approximate arrangement of 2, 8, 18, 32, 32 electrons from the innermost shell to the outermost. This is a simplified learning model, not the full electron configuration that accounts for the s, p, d and f subshells.

Explore Other Elements

Want to see another element or try the element symbol quiz? Go back to the Interactive Periodic Table to explore all 118 chemical elements.

Frequently Asked Questions

The chemical symbol of Uranium is U, with atomic number 92 and an atomic mass of about 238.029 u.
Uranium is in the Actinide category and is a solid at room temperature.
Uranium is in group 6, period 7 (actinide series) of the periodic table.
Uranium is commonly used for Nuclear fuel.
Using the simplified Bohr model, Uranium has 5 electron shells, with an approximate arrangement of 2, 8, 18, 32, 32 electrons from the innermost shell to the outermost.