92

Radioactive

U

Uranium

238.03

Actinide
Solid

Discovery

Klaproth, Martin Heinrich (1789)

Etymology

Greek via Latin

Meaning

Sky

Electron configuration

Electron configuration

Crystal structure

Crystal structure

Orthorhombic

Physical Properties

Phase

  (at 21 °C and 101.325 kPa)

Solid

Melting point

  (at 101.325 kPa)

1132.0 °C

1405.15 K

Density

  (at 21 °C and 101.325 kPa)

20.20 g/cm3

Electronegativity

1.38