HHomeBackground Color:He
LiBeNobelium Main PageBlack White GrayBCNOFNe
NaMgNobelium Pictures PageAlSiPSClAr
KCaNobelium Technical DataScTiVCrMnFeCoNiCuZnGaGeAsSeBrKr
RbSrYZrNbMoTcRuRhPdAgCdInSnSbTeIXe
CsBaLaCePrNdPmSmEuGdTbDyHoErTmYbLuHfTaWReOsIrPtAuHgTlPbBiPoAtRn
FrRaAcThPaUNpPuAmCmBkCfEsFmMdNoLrRfDbSgBhHsMtDsRgCnNhFlMcLvTsOg

Isotopes of Nobelium (click to see decay chain):
248No  249No  250No  251No  252No  253No  254No  255No  256No  257No  258No  259No  260No  261No  262No  263No  264No 

257No    Half-lifeFermion, 102p 155ntitle icon
25 sSpin 7/2 Parity 1

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ProbabilityModeDecay EnergyDaughter
85%α8.4661MeV253Fm
15%β+222.1keV257Md
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Atomic Weight257.09687719
AbundanceNone
Mass Excess90.240522MeV
Binding Energy7.409683MeV
Magnetic MomentN/A
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..