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National Institute of Standards and Technology NIST Physical Measurement Laboratory
NIST Atomic Spectra Database
Ionization Energies Data

Mo (all spectra)
42 Data Rows Found 
Example of how to reference these results:
Kramida, A., Ralchenko, Yu., Reader, J., and NIST ASD Team (2024). NIST Atomic Spectra Database (ver. 5.12), [Online]. Available: https://physics.nist.gov/asd [2026, October 26]. National Institute of Standards and Technology, Gaithersburg, MD. DOI: https://doi.org/10.18434/T4W30F
BibTex Citation (new window)
 

 Ionization  Energy 
 (cm-1) 
  57 204.3         
  [130 300]          
  [218 800]          
  [325 300]          
  [438 900]          
  555 127.5         
  [1 013 340]          
  1 157 900           
  1 323 700           
  [1 503 000]          
  (1 688 000)          
  [1 857 300]          
  [2 251 000]          
  2 440 600           
  [4 388 000]          
  (4 767 000)          
  (5 210 000)          
  (5 662 000)          
  (6 114 000)          
  (6 686 000)          
  (7 178 000)          
  (7 686 000)          
  (8 219 000)          
  (8 727 000)          
  [10 190 000]          
  [10 643 300]          
  [11 171 500]          
  [11 793 000]          
  [12 396 000]          
  [12 798 000]          
  [13 954 200]          
  [14 444 840]          
  [34 351 000]          
  [35 734 000]          
  [37 246 000]          
  [38 695 000]          
  [41 005 000]          
  [42 641 000]          
  [44 746 000]          
  (46 080 020)          
  (192 045 869)          
  (198 188 260)          
Notes:
a Uncertainty of the listed value is unknown.

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