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Isotopes of Fermium (click to see decay chain): 242Fm  243Fm  244Fm  245Fm  246Fm  247Fm  248Fm  249Fm  250Fm  251Fm  252Fm  253Fm  254Fm  255Fm  256Fm  257Fm  258Fm  259Fm  260Fm

245Fm     Half-life Fermion, 100p 145n 4.3 s Spin 1/2 Parity 1 Hide Decay Modes Probability Mode Decay Energy Daughter 95.7% α 8.435MeV 241Cf 4.2% β+ 2.761MeV 245Es 0.13% SF N/A Variable Hide Ultimate Decay Products Yield Nuclide 2.522298067458% 205Tl 1.749583744163×10-11% 207Pb Atomic Weight 245.075385 Abundance None Mass Excess 70.221MeV Binding Energy 7.465MeV Magnetic Moment N/A Quadrupole Moment N/A   Show Isotope Symbols. Also show decay chains leading to this isotope. Show only decays with probability >0.1%. Show Decay Image Full Size.

Decay chain image generated by Mathematica's GraphPlot and IsotopeData functions from Wolfram Research, Inc..