HHomeBackground Color:He
LiBeNeptunium Main PageBlack White GrayBCNOFNe
NaMgNeptunium Pictures PageAlSiPSClAr
KCaNeptunium Technical DataScTiVCrMnFeCoNiCuZnGaGeAsSeBrKr
RbSrYZrNbMoTcRuRhPdAgCdInSnSbTeIXe
CsBaLaCePrNdPmSmEuGdTbDyHoErTmYbLuHfTaWReOsIrPtAuHgTlPbBiPoAtRn
FrRaAcThPaUNpPuAmCmBkCfEsFmMdNoLrRfDbSgBhHsMtDsRgCnNhFlMcLvTsOg

Isotopes of Neptunium (click to see decay chain):
225Np  226Np  227Np  228Np  229Np  230Np  231Np  232Np  233Np  234Np  235Np  236Np  237Np  238Np  239Np  240Np  241Np  242Np  243Np  244Np 

235Np    Half-lifeBoson, 93p 142ntitle icon
1.085109081684 ySpin 5/2 Parity 1

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ProbabilityModeDecay EnergyDaughter
100%ϵ124.214keV235U
0.0026%α5.19403MeV231Pa
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Atomic Weight235.044063267
AbundanceNone
Mass Excess41.044669MeV
Binding Energy7.587049MeV
Magnetic MomentN/A
Quadrupole MomentN/A
 
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Decay chain image generated by Mathematica's GraphPlot and IsotopeData functions from Wolfram Research, Inc..