Most of the isotope data on this site has been obtained from the National Nuclear Data Center.
Naturally Occurring Isotopes
| Mass Number | Natural Abundance | Half-life |
| 3 | 0.000134% | STABLE |
| 4 | 99.999866% | STABLE |
Known Isotopes
| Mass Number | Half-life | Decay Mode | Branching Percentage |
| 3 | STABLE | - | - |
| 4 | STABLE | - | - |
| 5 | 7.595×10-22 seconds | Neutron Emission | 100.00% |
| Alpha Decay | 100.00% | ||
| 6 | 801 milliseconds | Beta-minus Decay | 100.00% |
| 7 | 3.038×10-21 seconds | Neutron Emission | No Data Available |
| 8 | 119.1 milliseconds | Beta-minus Decay | 100.00% |
| Beta-minus Decay with delayed Neutron Emission | 16.00% | ||
| 9 | No Data Available | Neutron Emission | 100.00% |
| 10 | 1.519×10-21 seconds | Neutron Emission | 100.00% |
This page is maintained by Steve Gagnon.