[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
Seaborgium has no naturally occurring isotopes.
Known Isotopes
Mass Number | Half-life | Decay Mode | Branching Percentage |
258 | 2.9 milliseconds | Spontaneous Fission | <= 100.00% |
Alpha Decay (suspected) | No Data Available | ||
259 | 0.32 seconds | Alpha Decay | 96.00% |
Spontaneous Fission | 4.00% | ||
259m | 0.28 seconds | Alpha Decay | < 100.00% |
260 | 3.6 milliseconds | Spontaneous Fission | 50.00% |
Alpha Decay | 50.00% | ||
260m | 4.95 milliseconds | Spontaneous Fission | 71.00% |
Alpha Decay | 29.00% | ||
261 | 0.23 seconds | Alpha Decay | 100.00% |
Spontaneous Fission | < 1.00% | ||
262 | 6.9 milliseconds | Spontaneous Fission | >= 78.00% |
Alpha Decay | <= 22.00% | ||
263 | 1.0 seconds | Alpha Decay | > 70.00% |
Spontaneous Fission | < 30.00% | ||
263m | 0.12 seconds | Isomeric Transition | No Data Available |
Alpha Decay | No Data Available | ||
264 | 37 milliseconds | Spontaneous Fission | 100.00% |
Alpha Decay | < 36.00% | ||
265 | 16.2 seconds | Alpha Decay | >= 65.00% |
Spontaneous Fission | <= 35.00% | ||
No Data Available | No Data Available | ||
266 | 21 seconds | Spontaneous Fission | > 50.00% |
Alpha Decay | > 18.00% | ||
267 | No Data Available | No Data Available | No Data Available |
268 | No Data Available | Spontaneous Fission (suspected) | No Data Available |
Alpha Decay (suspected) | No Data Available | ||
269 | No Data Available | No Data Available | No Data Available |
270 | No Data Available | Alpha Decay (suspected) | No Data Available |
Spontaneous Fission (suspected) | No Data Available | ||
271 | 2.4 minutes | Alpha Decay | ~ 50.00% |
Spontaneous Fission | ~ 50.00% | ||
272 | No Data Available | Alpha Decay (suspected) | No Data Available |
Spontaneous Fission (suspected) | No Data Available | ||
273 | No Data Available | Spontaneous Fission (suspected) | No Data Available |
This page is maintained by Steve Gagnon.