| 
| 21Ne | Half-life | Fermion, 10p 11n |  |  | 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 | 20.993846684 |  | Abundance | 0.27% |  | Mass Excess | -5.731776MeV |  | Binding Energy | 7.971713MeV |  | Magnetic Moment | -0.661797 μ |  | Quadrupole Moment | 0.103 | 
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