HHomeBackground Color:He
LiBeHelium Main PageBlack White GrayBCNOFNe
NaMgHelium Pictures PageAlSiPSClAr
KCaHelium Technical DataScTiVCrMnFeCoNiCuZnGaGeAsSeBrKr
RbSrYZrNbMoTcRuRhPdAgCdInSnSbTeIXe
CsBaLaCePrNdPmSmEuGdTbDyHoErTmYbLuHfTaWReOsIrPtAuHgTlPbBiPoAtRn
FrRaAcThPaUNpPuAmCmBkCfEsFmMdNoLrRfDbSgBhHsMtDsRgUubUutUuqUupUuhUusUuo

Isotopes of Helium (click to see decay chain):
2He  3He  4He  5He  6He  7He  8He  9He  10He 

9He    Half-lifeFermion, 2p 7ntitle icon
7.×10-12nsSpin 1/2 Parity -1

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Atomic Weight9.043950286
AbundanceNone
Mass Excess40.939429MeV
Binding Energy3.348637MeV
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..