Isotope Mass Abundance Spin Mag Moment
6Li 6.015121 7.5% 1 +0.822056 7Li 7.016003 92.5% 3/2 +3.25644
Li I Ground State 1s22s 2S1/2 Ionization energy 43487.150 cm-1 (5.391719 eV) Ref. K87 Li II Ground State 1s2 1S0 Ionization energy 610078 cm-1 (75.6400 eV) Ref. DM01