Notes
| Isotopes of Mendelevium |
| Notes
|
| Mendelevium has no stable isotopes. |
 Notable Isotopes  |
 257Md [156 neutrons] |
 Abundance: Synthetic
|
| Half life: 5.52 hours [ Electron Capture ]
|
| Decay Energy: 0.406 MeV |
| Decays to 257Fm.
|
| Half life: 5.52 hours [ Alpha Decay ]
|
| Decay Energy: 7.558 MeV |
| Decays to 253Es.
|
| Half life: 5.52 hours
|
| Decay Energy: ? MeV |
| Decays to ?.
|
| 258Md [157 neutrons] |
| Abundance: Synthetic
|
| Half life: 51.5 days [ Electron Capture ]
|
| Decay Energy: 1.230 MeV |
| Decays to 258Fm.
|
| 259Md [158 neutrons] |
| Abundance: Synthetic
|
| Half life: 31.8 days
|
| Decay Energy: ? MeV |
| Decays to ?.
|
| Half life: 31.8 days [ Alpha Decay ]
|
| Decay Energy: 7.000 MeV |
| Decays to 256Es.
|
| Half life: 31.8 days [ Electron Capture ]
|
| Decay Energy: ? MeV |
| Decays to 260Fm.
|
| Half life: 31.8 days [ beta- ]
|
| Decay Energy: 1.000 MeV |
| Decays to 260No.
|