HHomeBackground Color:He
LiBeSamarium Main PageBlack White GrayBCNOFNe
NaMgSamarium Pictures PageAlSiPSClAr
KCaSamarium Technical DataScTiVCrMnFeCoNiCuZnGaGeAsSeBrKr
RbSrYZrNbMoTcRuRhPdAgCdInSnSbTeIXe
CsBaLaCePrNdPmSmEuGdTbDyHoErTmYbLuHfTaWReOsIrPtAuHgTlPbBiPoAtRn
FrRaAcThPaUNpPuAmCmBkCfEsFmMdNoLrRfDbSgBhHsMtDsRgCnNhFlMcLvTsOg

Isotopes of Samarium (click to see decay chain):
128Sm  129Sm  130Sm  131Sm  132Sm  133Sm  134Sm  135Sm  136Sm  137Sm  138Sm  139Sm  140Sm  141Sm  142Sm  143Sm  144Sm  145Sm  146Sm  147Sm  148Sm  149Sm  150Sm  151Sm  152Sm  153Sm  154Sm  155Sm  156Sm  157Sm  158Sm  159Sm  160Sm  161Sm  162Sm  163Sm  164Sm  165Sm 

131Sm    Half-lifeFermion, 62p 69ntitle icon
1.2 sSpin 5/2 Parity 1

Hide Decay Modes
ProbabilityModeDecay EnergyDaughter
100%β+8.516MeV131Pm
Unknownβ+pN/A130Nd
Show Ultimate Decay Products
Atomic Weight130.94611
AbundanceNone
Mass Excess-50.198MeV
Binding Energy8.084MeV
Magnetic MomentN/A
Quadrupole MomentN/A
 
Show Isotope Symbols.
Also show decay chains leading to this isotope.
Show all decays, even very low-probability.
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..