51

Sb

Antimony

121.76

Semimetal
Solid

Discovery

Unknown (ancient)

Etymology

Greek via Medieval Latin

Meaning

Various

Electron configuration

Electron configuration

Crystal structure

Crystal structure

Rhombohedral

Physical Properties

Phase

  (at 21 °C and 101.325 kPa)

Solid

Melting point

  (at 101.325 kPa)

630.0 °C

903.15 K

Boiling point

  (at 101.325 kPa)

2270.0 °C

2543.15 K

Density

  (at 21 °C and 101.325 kPa)

6.68 g/cm3

Electronegativity

2.05