Most of the isotope data on this site has been obtained from the National Nuclear Data Center.
Naturally Occurring Isotopes
Moscovium (Ununpentium) has no naturally occurring isotopes.
Known Isotopes
| Mass Number | Half-life | Decay Mode | Branching Percentage |
| 287 | 32 milliseconds | Alpha Decay | 100.00% |
| 288 | 87 milliseconds | Alpha Decay | 100.00% |
| 289 | 0.22 seconds | Alpha Decay | 100.00% |
| Spontaneous Fission | No Data Available | ||
| 290 | 16 milliseconds | Alpha Decay | 100.00% |
| Spontaneous Fission | No Data Available | ||
| 291 | No Data Available | Alpha Decay (suspected) | No Data Available |
| Spontaneous Fission (suspected) | No Data Available | ||
| 299 | STABLE | - |
This page is maintained by Steve Gagnon.