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

7He     Half-life Fermion, 2p 5n 3.041333333333×10-12 ns Spin 3/2 Parity -1 Show Decay Modes Show Ultimate Decay Products Atomic Weight 7.028020618 Abundance None Mass Excess 26.101038MeV Binding Energy 4.11907MeV Magnetic Moment N/A Quadrupole Moment N/A   Show Element Pictures. 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..