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NIST Atomic Spectra Database
Ionization Energies Data

Mg (all spectra)
12 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 [2025, May 14]. National Institute of Standards and Technology, Gaithersburg, MD. DOI: https://doi.org/10.18434/T4W30F
BibTex Citation (new window)
 

 At. Num.   Ion  Charge   El.  name   Ionization  Energy 
 (eV) 		 Uncertainty
 (eV) 		  References 
12  0  Magnesium    7.646236                 0.000004   L10635,L6969 
12  +1  Magnesium    15.035271                 0.000006   L10635 
12  +2  Magnesium    80.1436                   0.0006     L4995,L1434 
12  +3  Magnesium    [109.2654]                  0.0012     L4995,L2720 
12  +4  Magnesium    [141.33]                    0.03       L11770 
12  +5  Magnesium    [186.76]                    0.06       L10635 
12  +6  Magnesium    [225.02]                    0.06       L11770 
12  +7  Magnesium    [265.924]                   0.019      L11770 
12  +8  Magnesium    [327.99]                    0.04       L11770 
12  +9  Magnesium    (367.489)                   0.007      L16264c99 
12  +10  Magnesium    (1 761.8049)                  0.0010     L21139 
12  +11  Magnesium    (1 962.663889)                0.000007   L19200 

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