Ruthenium (Ru)
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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