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NIST Atomic Spectra Database
Ionization Energies Data

Na (all spectra)
11 Data Rows Found 

Example of how to reference these results:
Kramida, A., Ralchenko, Yu., Reader, J., and NIST ASD Team (2021). NIST Atomic Spectra Database (ver. 5.9), [Online]. Available: https://physics.nist.gov/asd [2022, August 13]. 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 
11  Sodium    5.13907696                 0.00000025   L10921,L9648 
11  +1  Sodium    47.28636                    0.00025      L914 
11  +2  Sodium    [71.6200]                    0.0012       L5793,L2720 
11  +3  Sodium    [98.936]                     0.012        L11770 
11  +4  Sodium    138.404                      0.012        L7482 
11  +5  Sodium    [172.23]                      0.05         L11770 
11  +6  Sodium    [208.504]                     0.012        L11770 
11  +7  Sodium    [264.192]                     0.022        L11770 
11  +8  Sodium    (299.856)                     0.007        L16264c99 
11  +9  Sodium    (1 465.134502)                  0.000025     L13237 
11  +10  Sodium    (1 648.70220)                   0.00012      L7188 

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