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

3He     Half-life Fermion, 2p 1n Stable Spin 1/2 Parity 1 This isotope is stable and thus has no decay products, so instead we show decay chains that lead down to it. Atomic Weight 3.01602931914 Abundance 0.000137% Mass Excess 14.93121475MeV Binding Energy 2.572681MeV Magnetic Moment -2.12762485 μ Quadrupole Moment N/A   Show Isotope Symbols. Show Decay Image Full Size.

Decay chain image generated by Mathematica's GraphPlot and IsotopeData functions from Wolfram Research, Inc..