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 

250Fm    Half-lifeBoson, 100p 150ntitle icon
30 mSpin 0 Parity 1

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ProbabilityModeDecay EnergyDaughter
90%α7.5569MeV246Cf
10%ϵ847keV250Es
0.0069%SFN/AVariable
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YieldNuclide
99.74763147407%206Pb
1.884774987662×10-6%205Tl
2.592407285349×10-9%208Pb
6.919200794089×10-17%160Dy
4.539622203511×10-21%140Ce
Unknown172Yb
Unknown152Sm
Unknown180Hf
Unknown176Hf
Unknown156Gd
Unknown168Er
Unknown164Dy
Atomic Weight250.079521264
AbundanceNone
Mass Excess74.073581MeV
Binding Energy7.462084MeV
Magnetic Moment0 μ
Quadrupole MomentN/A
 
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Decay Chain Image

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