[Click for Main Data] Proton Emission Neutron Emission Electron Emission Positron Emission
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 |
| 20 | 90.48% | STABLE |
| 21 | 0.27% | STABLE |
| 22 | 9.25% | STABLE |
Known Isotopes
| Mass Number | Half-life | Decay Mode | Branching Percentage |
| 16 | 9×10-21 seconds | Double Proton Emission | 100.00% |
| 17 | 109.2 milliseconds | Electron Capture with delayed Alpha Decay | No Data Available |
| Electron Capture | 100.00% | ||
| Electron Capture with delayed Proton Emission | 100.00% | ||
| 18 | 1.6670 seconds | Electron Capture | 100.00% |
| 19 | 17.22 seconds | Electron Capture | 100.00% |
| 20 | STABLE | - | - |
| 21 | STABLE | - | - |
| 22 | STABLE | - | - |
| 23 | 37.24 seconds | Beta-minus Decay | 100.00% |
| 24 | 3.38 minutes | Beta-minus Decay | 100.00% |
| 25 | 602 milliseconds | Beta-minus Decay | 100.00% |
| 26 | 197 milliseconds | Beta-minus Decay | 100.00% |
| Beta-minus Decay with delayed Neutron Emission | 0.13% | ||
| 27 | 31.5 milliseconds | Beta-minus Decay | 100.00% |
| Beta-minus Decay with delayed Neutron Emission | 2.00% | ||
| 28 | 18.9 milliseconds | Beta-minus Decay | 100.00% |
| Beta-minus Decay with delayed Neutron Emission | 12.0% | ||
| Beta-minus Decay | 3.60% | ||
| 29 | 14.8 milliseconds | Beta-minus Decay | 100.00% |
| Beta-minus Decay with delayed Neutron Emission | 28.00% | ||
| Beta-minus Decay with delayed Double Neutron Emission | 4.00% | ||
| 30 | 7.3 milliseconds | Beta-minus Decay | 8.90% |
| Beta-minus Decay | 100.00% | ||
| Beta-minus Decay with delayed Neutron Emission | 13.00% | ||
| 31 | 3.4 milliseconds | Beta-minus Decay | 100.00% |
| Beta-minus Decay with delayed Neutron Emission | No Data Available | ||
| 32 | 3.5 milliseconds | Beta-minus Decay | 100.00% |
| Beta-minus Decay with delayed Neutron Emission | No Data Available | ||
| 33 | < 180 nanoseconds | Neutron Emission | No Data Available |
| 34 | > 60 nanoseconds | Beta-minus Decay with delayed Neutron Emission | No Data Available |
| Beta-minus Decay | No Data Available |
This page is maintained by Steve Gagnon.