| 
| 38Ar | Half-life | Boson, 18p 20n |  |  | 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 | 37.962732394 |  | Abundance | 0.0632% |  | Mass Excess | -34.714551MeV |  | Binding Energy | 8.614273MeV |  | Magnetic Moment | 0 μ |  | Quadrupole Moment | N/A | 
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