NIST Physical Measurement Laboratory Handbook of Basic Atomic Spectroscopic Data

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Atomic Data for Ytterbium (Yb)

Atomic Number = 70

Atomic Weight = 173.04

Reference E95



Isotope    Mass        Abundance Spin Mag Moment
168Yb 167.933894 0.13% 0 170Yb 169.934759 3.05% 0 171Yb 170.936323 14.3% 1/2 +0.4919 172Yb 171.936378 21.9% 0 173Yb 172.938208 16.12% 5/2 -0.6776 174Yb 173.938859 31.8% 0 176Yb 175.942564 12.7% 0
 
Yb I  Ground State (1s22s22p63s23p63d104s24p64d105s25p6)4f146s2  1S0
      Ionization energy  50443.2 cm-1 (6.25416 eV)   Ref. A80
 
Yb II Ground State (1s22s22p63s23p63d104s24p64d105s25p6)4f146s  2S1/2
      Ionization energy  98207 cm-1 (12.176 eV)   Ref. SK79