HHomeBackground Color:He
LiBeFermium Main PageBlack White GrayBCNOFNe
NaMgFermium Pictures PageAlSiPSClAr
KCaFermium Technical DataScTiVCrMnFeCoNiCuZnGaGeAsSeBrKr
RbSrYZrNbMoTcRuRhPdAgCdInSnSbTeIXe
CsBaLaCePrNdPmSmEuGdTbDyHoErTmYbLuHfTaWReOsIrPtAuHgTlPbBiPoAtRn
FrRaAcThPaUNpPuAmCmBkCfEsFmMdNoLrRfDbSgBhHsMtDsRgCnNhFlMcLvTsOg

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 

251Fm    Half-lifeFermion, 100p 151ntitle icon
5.277777777778 hSpin 9/2 Parity -1

Hide Decay Modes
ProbabilityModeDecay EnergyDaughter
98.2%β+452.24keV251Es
1.8%α7.4251MeV247Cf
Hide Ultimate Decay Products
YieldNuclide
100.2769472398%207Pb
8.900056232651×10-8%205Tl
8.000061258268×10-10%206Pb
9.900062550922×10-13%208Pb
Atomic Weight251.081575017
AbundanceNone
Mass Excess75.98664MeV
Binding Energy7.45689MeV
Magnetic MomentN/A
Quadrupole MomentN/A
 
Show Element Pictures.
Show only decay products of this isotope.
Show Decay Image Smaller.
Click any isotope in diagram to see its data.
Decay Chain Image

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