NIST Physical Measurement Laboratory Handbook of Basic Atomic Spectroscopic Data

[skip navigation] National Institute of Standards and Technology NIST Physical Measurement Laboratory Thallium (Tl) 

Homepage - IntroductionFinding listSelect element by name.Select element by atomic number.Select element from periodic tableThallium Atomic DataThallium Strong LinesThallium Neutral Atom Persistent LinesThallium Neutral Atom Energy LevelsThallium Singly Ionized Persistent LinesThallium Singly Ionized Energy LevelsThallium References
Switch to ASCII Version

Atomic Data for Thallium (Tl)

Atomic Number = 81

Atomic Weight = 204.3833

Reference E95


  Isotope   Mass   Abundance   Spin   Mag Moment 
              
203Tl202.97232029.52%1/2+1.6223
205Tl204.97440170.48%1/2+1.6382

Tl I  Ground State 1s22s22p63s23p63d104s24p64d104f145s25p65d106s26p 2P1/2
       Ionization energy  49265.91 cm-1 (6.108194 eV)   Ref. BC85

Tl II Ground State 1s22s22p63s23p63d104s24p64d104f145s25p65d106s2 1S0
       Ionization energy  164765 cm-1 (20.4283 eV)   Ref. M58