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 

256Fm    Half-lifeBoson, 100p 156ntitle icon
2.626666666667 hSpin 0 Parity 1

Hide Decay Modes
ProbabilityModeDecay EnergyDaughter
91.9%SFN/AVariable
8.1%α7.02721MeV252Cf
Show Ultimate Decay Products
Atomic Weight256.091773117
AbundanceNone
Mass Excess85.486109MeV
Binding Energy7.431783MeV
Magnetic Moment0 μ
Quadrupole MomentN/A
 
Show Isotope Symbols.
Also show decay chains leading to this isotope.
Show only decays with probability >0.1%.
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..