Isotopes of Lanthanum

Notable Isotopes

137La [80 neutrons]

Abundance: synthetic

Half life: 60000 years [ Electron Capture ]

Decay Energy: 0.600 MeV

Decays to 137Ba.

138La [81 neutrons]

Abundance: 0.09%

Half life: 1.05 x 1011 years [ Electron Capture ]

Decay Energy: 1.737 MeV

Decays to 138Ba.

Half life: 1.05 x 1011 years [ beta- ]

Decay Energy: 1.044 MeV

Decays to 138Ce.

139La [82 neutrons]

Abundance: 99.91%

Stable with 82 neutrons