|
|
| Isotopes of Lanthanum |
 Notable Isotopes
|
 137La [80 neutrons] |
 Abundance: synthetic
|
| Half life: 60000 years [ Electron Capture ]
|
| Decay Energy: 0.600MeV |
| Decays to 137Ba.
|
| 138La [81 neutrons] |
| Abundance: 0.09%
|
| Half life: 1.05 x 1011 years [ Electron Capture ]
|
| Decay Energy: 1.737MeV |
| Decays to 138Ba.
|
| Half life: 1.05 x 1011 years [ beta- ]
|
| Decay Energy: 1.044MeV |
| Decays to 138Ce.
|
| 139La [82 neutrons] |
| Abundance: 99.91%
|
| Stable with 82 neutrons
|