H Home Background Color: He Li Be Helium Main Page Black White Gray B C N O F Ne Na Mg Helium Pictures Page Al Si P S Cl Ar K Ca Helium Technical Data Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe Cs Ba La Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn Fr Ra Ac Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr Rf Db Sg Bh Hs Mt Ds Rg Cn Nh Fl Mc Lv Ts Og

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

8He     Half-life Boson, 2p 6n 119 ms Spin 0 Parity 1 Hide Decay Modes Probability Mode Decay Energy Daughter 83% β- 10.6512MeV 8Li 16% β-n 8.61859MeV 7Li 0.9% β-t N/A 5He Hide Ultimate Decay Products Yield Nuclide 83.9% 4He 16% 7Li Atomic Weight 8.033921897 Abundance None Mass Excess 31.598044MeV Binding Energy 3.925975MeV Magnetic Moment 0 μ Quadrupole Moment N/A   Show Isotope Symbols. Show only decay products of this isotope.

Click any isotope in diagram to see its data. Decay chain image generated by Mathematica's GraphPlot and IsotopeData functions from Wolfram Research, Inc..