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

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 

237Np    Half-lifeBoson, 93p 144ntitle icon
2.1455×106ySpin 5/2 Parity 1

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ProbabilityModeDecay EnergyDaughter
100.%α4958.26keV233Pa
2.×10-10%SFN/AVariable
4.×10-12%30MgN/A207Tl
Show Ultimate Decay Products
Atomic Weight237.048173444
AbundanceNone
Mass Excess44.873275MeV
Binding Energy7.574982MeV
Magnetic Moment3.14μ
Quadrupole Moment3.886
 
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Decay Chain Image

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