NIST Physical Measurement Laboratory Handbook of Basic Atomic Spectroscopic Data

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Atomic Data for Gold (Au)

Atomic Number = 79

Atomic Weight = 196.966543

Reference E95

Isotope    Mass        Abundance Spin Mag Moment
197Au 196.966543 100% 3/2 +0.1457
Au I  Ground State 1s22s22p63s23p63d104s24p64d104f145s25p65d106s  2S1/2
      Ionization energy  74408.88 cm-1 (9.22553 eV)   Ref. BG78
Au II Ground State 1s22s22p63s23p63d104s24p64d104f145s25p65d10  1S0
      Ionization energy  162950 cm-1 (20.20 eV)   Ref. RW97