92U

Uranium

Actinide

Uranium (U) is element 92, an actinide, in period 7 of the periodic table. Its standard atomic weight is 238.029, it melts at 1135 °C and boils at 4131 °C. Discovered by Martin Heinrich Klaproth, 1789.

Atomic Number92

SymbolU

NameUranium

Atomic Weight238.029 u

CategoryActinide

Period7

Melting Point1135 °C

Boiling Point4131 °C

Density18.95 g/cm³

Electron Config[Rn] 5f3 6d1 7s2

Discovered ByMartin Heinrich Klaproth, 1789

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