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 |
| 10 | 19.9% | STABLE |
| 11 | 80.1% | STABLE |
Known Isotopes
| Mass Number | Half-life | Decay Mode | Branching Percentage |
| 6 | No Data Available | Double Proton Emission (suspected) | No Data Available |
| 7 | 3.255×10-22 seconds | Proton Emission | No Data Available |
| Alpha Decay | No Data Available | ||
| 8 | 770 milliseconds | Electron Capture | 100.00% |
| Electron Capture with delayed Alpha Decay | 100.00% | ||
| 9 | 8.439×10-19 seconds | Proton Emission | 100.00% |
| Double Alpha Decay | 100.00% | ||
| 10 | STABLE | - | - |
| 11 | STABLE | - | - |
| 12 | 20.20 milliseconds | Beta-minus Decay | 100.00% |
| Beta-minus Decay with delayed Triple Alpha Decay | 1.58% | ||
| 13 | 17.33 milliseconds | Beta-minus Decay | 100.00% |
| 14 | 12.5 milliseconds | Beta-minus Decay | 100.00% |
| 15 | 9.93 milliseconds | Beta-minus Decay | 100.00% |
| Beta-minus Decay with delayed Neutron Emission | 93.60% | ||
| Beta-minus Decay with delayed Double Neutron Emission | 0.40% | ||
| 16 | < 190 picoseconds | Neutron Emission | No Data Available |
| 17 | 5.08 milliseconds | Beta-minus Decay | 100.00% |
| Beta-minus Decay with delayed Neutron Emission | 63.00% | ||
| Beta-minus Decay with delayed Double Neutron Emission | 11.00% | ||
| Beta-minus Decay with delayed Triple Neutron Emission | 3.50% | ||
| Beta-minus Decay with delayed Quadruple Neutron Emission | 0.40% | ||
| 18 | 26 nanoseconds | Neutron Emission (suspected) | No Data Available |
| 19 | 2.92 milliseconds | Beta-minus Decay | 100.00% |
| Beta-minus Decay with delayed Neutron Emission | 72.00% | ||
| Beta-minus Decay with delayed Double Neutron Emission | 16.00% | ||
| 20 | No Data Available | No Data Available | No Data Available |
| 21 | No Data Available | No Data Available | No Data Available |
This page is maintained by Steve Gagnon.