All chemical elements

Symbol

N

Atomic number

7

Chemical property

Reactive nonmetal

Origin o the name

the Greek nitron and '-gen' meaning 'niter-forming'

Group

15

Period

2

Atomic weight (u)

14.007

Atomic weight uncertainty (u)

0

Density (g/cm³)

0.001251

Melting point (K)

63.15

Boiling point (K)

77.36

Heat capacity (J/(g·K))

1.04

Electro-negativity

3.04

Abundance in earth's crust (mg/kg)

19