71

Lu

Lutetium

174.97

Lathanide
Solid

Discovery

Urbain, Georges (1907)

Etymology

Latin

Meaning

Paris

Electron configuration

Electron configuration

Crystal structure

Crystal structure

Hexagonal close-packed

Physical Properties

Phase

  (at 21 °C and 101.325 kPa)

Solid

Melting point

  (at 101.325 kPa)

1656.0 °C

1929.15 K

Boiling point

  (at 101.325 kPa)

1466.0 °C

1739.15 K

Density

  (at 21 °C and 101.325 kPa)

9.84 g/cm3

Electronegativity

1.27