NIST Physical Measurement Laboratory Handbook of Basic Atomic Spectroscopic Data

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Atomic Data for Tungsten (W)

Atomic Number = 74

Atomic Weight = 183.85

Reference E95


Isotope    Mass       Abundance Spin Mag Moment

180W       79.946701  0.12%     0    
182W       81.948202  26.3%     0    
183W       82.950220  14.28%    1/2  +0.11778
184W       83.950928  30.7%     0    
186W       85.954357  28.6%     0    

 
W I  Ground State 1s22s22p63s23p63d104s24p64d104f145s25p65d46s2  5D0
     Ionization energy  63427.7 cm-1 (7.86403 eV)   Ref. CS96
 
W II Ground State 1s22s22p63s23p63d104s24p64d104f145s25p65d46s  6D1/2
     Ionization energy  130000 cm-1 (16.1 eV)   Ref. MH84