NIST Physical Measurement Laboratory Handbook of Basic Atomic Spectroscopic Data

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Atomic Data for Ruthenium (Ru)

Atomic Number = 44

Atomic Weight = 101.07

Reference E95


Isotope    Mass        Abundance Spin Mag Moment

 96Ru      95.907599   5.53%     0    
 98Ru      97.905287   1.87%     0    
 99Ru      98.905939   12.7%     5/2  -6.413
100Ru      99.904219   12.6%     0    
101Ru      100.905582  17.1%     5/2  -0.7188
102Ru      101.904348  31.6%     0    
104Ru      103.905424  18.6%     0    

 
Ru I  Ground State 1s22s22p63s23p63d104s24p64d75s  5F5
      Ionization energy  59366.4 cm-1 (7.36050 eV)   Ref. CHR88a
 
Ru II Ground State 1s22s22p63s23p63d104s24p64d7  4F9/2
      Ionization energy  135200 cm-1 (16.76 eV)   Ref. SM58