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

Mn (all spectra)
25 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) 
  59 959.560         
  126 145.0           
  271 550             
  [413 000]            
  [584 000]            
  771 100             
  961 440             
  [1 576 600]            
  [1 789 630]            
  [2 005 400]            
  [2 307 900]            
  [2 536 000]            
  [2 771 000]            
  [3 250 000]            
  [3 509 900]            
  [9 144 100]            
  [9 872 800]            
  [10 649 000]            
  [11 541 000]            
  [12 398 500]            
  [13 253 400]            
  [14 426 800]            
  (15 162 200)            
  (65 659 870)            
  (69 137 474.7)          
Notes:
a Uncertainty of the listed value is unknown.

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