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 

242Np    Half-lifeFermion, 93p 149ntitle icon
2.166666666667 mSpin 1 Parity 1

Hide Decay Modes
ProbabilityModeDecay EnergyDaughter
100%β-2.7MeV242Pu
Hide Ultimate Decay Products
YieldNuclide
100.0441587592%206Pb
1.890378000004×10-6%205Tl
2.600104000006×10-9%208Pb
1.69136013816×10-28%160Dy
1.109685390816×10-32%140Ce
Unknown172Yb
Unknown152Sm
Unknown180Hf
Unknown176Hf
Unknown156Gd
Unknown168Er
Unknown164Dy
Atomic Weight242.06164118
AbundanceNone
Mass Excess57.41839MeV
Binding Energy7.533397MeV
Magnetic MomentN/A
Quadrupole MomentN/A
 
Show Element Pictures.
Show only decay products of this isotope.
Show Decay Image Smaller.
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..