NIST Physical Measurement Laboratory Handbook of Basic Atomic Spectroscopic Data

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Atomic Data for Silicon (Si)

Atomic Number = 14

Atomic Weight = 28.0855

Reference E95

Isotope   Mass       Abundance Spin Mag Moment
28Si 27.976927 92.23% 0 29Si 28.976495 4.67% 1/2 -0.5553 30Si 29.973770 3.10% 0
Si I  Ground State 1s22s22p63s23p2  3P0
      Ionization energy  65747.76 cm-1 (8.15168 eV)   Ref. MKMD94
Si II Ground State 1s22s22p63s23p  21/2
      Ionization energy  131838.14 cm-1 (16.34584 eV)   Ref. MZ83