Atomic number

1

Atomic mass

1.008

Group block

Nonmetal

Standard state

Gas

Electron configuration

1s1

Measures

Electronegativity

2.2

Atomic radius

120

Ionisation energy

13.598

Electron affinity

0.754

Melting point

13.81

Boiling point

20.28

Density

0.00008988

Year discovered

1766

Oxidation states