| 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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