Most of the isotope data on this site has been obtained from the National Nuclear Data Center.
Known Isotopes
| Mass Number | Half-life | Decay Mode | Branching Percentage |
| 272 | 3.8 milliseconds | Alpha Decay | 100.00% |
| 273 | No Data Available | Alpha Decay (suspected) | No Data Available |
| 274 | 6.4 milliseconds | Alpha Decay | 100.00% |
| 275 | No Data Available | Alpha Decay (suspected) | No Data Available |
| 276 | No Data Available | Spontaneous Fission (suspected) | No Data Available |
| Alpha Decay (suspected) | No Data Available | ||
| 277 | No Data Available | Spontaneous Fission (suspected) | No Data Available |
| Alpha Decay (suspected) | No Data Available | ||
| 278 | 4.2 milliseconds | Alpha Decay | 100.00% |
| Spontaneous Fission | No Data Available | ||
| 279 | 0.17 seconds | Alpha Decay | 100.00% |
| 280 | 3.6 seconds | Alpha Decay | 100.00% |
| 281 | 26 seconds | Spontaneous Fission | 100.00% |
| Alpha Decay | No Data Available | ||
| 282 | 0.5 seconds | Alpha Decay | 100.00% |
| Spontaneous Fission | No Data Available | ||
| 283 | No Data Available | Spontaneous Fission (suspected) | No Data Available |
| Alpha Decay (suspected) | No Data Available |
This page is maintained by Steve Gagnon.