HHomeBackground Color:He
LiBeUranium Main PageBlack White GrayBCNOFNe
NaMgUranium Pictures PageAlSiPSClAr
KCaUranium Technical DataScTiVCrMnFeCoNiCuZnGaGeAsSeBrKr
RbSrYZrNbMoTcRuRhPdAgCdInSnSbTeIXe
CsBaLaCePrNdPmSmEuGdTbDyHoErTmYbLuHfTaWReOsIrPtAuHgTlPbBiPoAtRn
FrRaAcThPaUNpPuAmCmBkCfEsFmMdNoLrRfDbSgBhHsMtDsRgCnNhFlMcLvTsOg

Isotopes of Uranium (click to see decay chain):
217U  218U  219U  220U  221U  222U  223U  224U  225U  226U  227U  228U  229U  230U  231U  232U  233U  234U  235U  236U  237U  238U  239U  240U  241U  242U 

221U    Half-lifeFermion, 92p 129ntitle icon
700 nsSpin 9/2 Parity 1

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ProbabilityModeDecay EnergyDaughter
Unknownα9.95MeV217Th
Unknownβ+3.19MeV221Pa
Show Ultimate Decay Products
Atomic Weight221.026399
AbundanceNone
Mass Excess24.591MeV
Binding Energy7.634MeV
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..