All chemical elements

Symbol

P

Atomic number

15

Chemical property

Reactive nonmetal

Origin o the name

the Greek phoosphoros, 'carrying light'

Group

15

Period

3

Atomic weight (u)

30.973762

Atomic weight uncertainty (u)

0

Density (g/cm³)

1.82

Melting point (K)

317.3

Boiling point (K)

550

Heat capacity (J/(g·K))

0.769

Electro-negativity

2.19

Abundance in earth's crust (mg/kg)

1050