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Isotopes of Argon (click to see decay chain): 30Ar  31Ar  32Ar  33Ar  34Ar  35Ar  36Ar  37Ar  38Ar  39Ar  40Ar  41Ar  42Ar  43Ar  44Ar  45Ar  46Ar  47Ar  48Ar  49Ar  50Ar  51Ar  52Ar  53Ar

40Ar     Half-life Boson, 18p 22n Stable Spin 0 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 39.96238312251 Abundance 99.6003% Mass Excess -35.03989602MeV Binding Energy 8.595259MeV Magnetic Moment 0 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..