Isotopes of Fermium
Notes
Fermium has no stable isotopes.
Notable Isotopes
252Fm [152 neutrons]
Abundance: synthetic
Half life: 25.39 hours
Decay Energy: ? MeV
Decays to ?.
Half life: 25.39 hours [ Alpha Decay ]
Decay Energy: 7.153 MeV
Decays to 248Cf.
253Fm [153 neutrons]
Abundance: synthetic
Half life: 3 days [ Electron Capture ]
Decay Energy: 0.333 MeV
Decays to 253Es.
Half life: 3 days [ Alpha Decay ]
Decay Energy: 7.197 MeV
Decays to 249Cf.
255Fm [155 neutrons]
Abundance: synthetic
Half life: 20.07 hours
Decay Energy: ? MeV
Decays to ?.
Half life: 20.07 hours [ Alpha Decay ]
Decay Energy: 7.241 MeV
Decays to 251Cf.
257Fm [157 neutrons]
Abundance: synthetic
Half life: 100.5 days [ Alpha Decay ]
Decay Energy: 6.864 MeV
Decays to 253Cf.
Half life: 100.5 days
Decay Energy: ? MeV
Decays to ?.