Isotopes of Hydrogen

Notable Isotopes

1H (Protium) [0 neutrons]

Abundance: 99.985%

Stable with 0 neutrons

2H (Deutrium) [1 neutrons]

Abundance: 1.1%

Stable with 1 neutron

3H (Tritium) [2 neutrons]

Abundance: trace

Half life: 12.32 years [ beta- ]

Decay Energy: 0.019 MeV

Decays to 3He.