NIST Physical Measurement Laboratory Handbook of Basic Atomic Spectroscopic Data

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Atomic Data for Technetium (Tc)

Atomic Number = 43

Atomic Weight = 98.9062

Reference E95

  Isotope   Mass   Abundance   Spin   Mag Moment 

Tc I  Ground State 1s22s22p63s23p63d104s24p64d55s2 6S5/2
       Ionization energy  58700 cm-1 (7.28 eV)   Ref. M58

Tc II Ground State 1s22s22p63s23p63d104s24p64d55s 7S3
       Ionization energy  123100 cm-1 (15.26 eV)   Ref. M58