Isotope Mass Abundance Spin Mag Moment
20Ne 19.992435 90.48% 0 21Ne 20.993843 0.27% 3/2 -0.66179 22Ne 21.991383 9.25% 0
Ne I Ground State 1s22s22p6 1S0 Ionization energy 173929.75 cm-1 (21.56454 eV) Ref. KM72 Ne II Ground State 1s22s22p5 2P°3/2 Ionization energy 330388.6 cm-1 (40.96296 eV) Ref. P71