| 
| 41K | Half-life | Boson, 19p 22n |  |  | Stable | Spin 3/2 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 | 40.961825762 |  | Abundance | 6.7302% |  | Mass Excess | -35.559074MeV |  | Binding Energy | 8.576061MeV |  | Magnetic Moment | 0.2148701 μ |  | Quadrupole Moment | 0.06 | 
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