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