| 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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