15

P

Phosphorus

30.974

Nonmetal
Solid

Discovery

Brandt, Hennig (1669)

Etymology

Greek via Latin

Meaning

Light-bearer

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)

44.0 °C

317.15 K

Boiling point

  (at 101.325 kPa)

280.0 °C

553.15 K

Density

  (at 21 °C and 101.325 kPa)

1.82 g/cm3

Electronegativity

2.19