Science Education
Most of the isotope data on this site has been obtained from the National Nuclear Data Center. Please visit their site for more information.
Naturally Occurring Isotopes
Darmstadtium has no naturally occurring isotopes.
Known Isotopes
| Mass Number | Half-life | Decay Mode | Branching Percentage |
| 267 | 2.8 microseconds | Alpha Decay | 100.00% |
| 268 | No Data Available | Alpha Decay | No Data Available |
| 269 | 179 microseconds | Alpha Decay | 100.00% |
| 270 | 0.10 milliseconds | Alpha Decay | 100.00% |
| Spontaneous Fission | < 0.20% | ||
| 270m | 6.0 milliseconds | Alpha Decay | > 70.00% |
| Isomeric Transition | <= 30.00% | ||
| 271 | 1.63 milliseconds | Alpha Decay | 100.00% |
| 271m | 69 milliseconds | Alpha Decay | > 0.00% |
| Isomeric Transition (suspected) | No Data Available | ||
| 272 | No Data Available | Spontaneous Fission | No Data Available |
| 273 | 0.17 milliseconds | Alpha Decay | 100.00% |
| 274 | No Data Available | Spontaneous Fission (suspected) | No Data Available |
| Alpha Decay (suspected) | No Data Available | ||
| 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 | Alpha Decay (suspected) | No Data Available |
| 278 | No Data Available | Spontaneous Fission (suspected) | No Data Available |
| Alpha Decay (suspected) | No Data Available | ||
| 279 | 0.18 seconds | Spontaneous Fission | ~ 90.00% |
| Alpha Decay | ~ 10.00% | ||
| 280 | No Data Available | No Data Available | No Data Available |
| 281 | 20 seconds | Spontaneous Fission | 85.00% |
| Alpha Decay | 15.00% | ||
| 281m | 9.6 seconds | Spontaneous Fission | 100.00% |
This page is maintained by Steve Gagnon.
