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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 (2019). NIST Atomic Spectra Database (ver. 5.7.1), [Online]. Available: https://physics.nist.gov/asd [2019, November 22]. National Institute of Standards and Technology, Gaithersburg, MD. DOI: https://doi.org/10.18434/T4W30F
BibTex Citation (new window)
 

 At. Num.   El.  name   Isoel.  Seq.   Ground  Shells a   Ground  Level   Ionization  Energy 
 (eV) 
Uncertainty
 (eV) 
 References 
11  Sodium  Na  [Ne]3s   2S1/2    5.1390769                 0.0000003   L10921,L9648 
11  Sodium  Ne  1s22s22p6   1S0    47.28636                   0.00025     L914 
11  Sodium  1s22s22p5   23/2    [71.6200]                   0.0012      L5793,L2720 
11  Sodium  1s22s22p4   3P2    [98.936]                    0.012       L11770 
11  Sodium  1s22s22p3   43/2    138.404                     0.012       L7482 
11  Sodium  1s22s22p2   3P0    [172.23]                     0.05        L11770 
11  Sodium  1s22s22p   21/2    [208.504]                    0.012       L11770 
11  Sodium  Be  1s22s2   1S0    [264.192]                    0.022       L11770 
11  Sodium  Li  1s22s   2S1/2    (299.856)                    0.007       L16264c99 
11  Sodium  He  1s2   1S0    (1 465.13449)                  0.00003     L13237 
11  Sodium  1s   2S1/2    (1 648.70218)                  0.00012     L7188 
Notes:
Designations used in the ground shell lists:
[Ne] = 1s22s22p6

If you did not find the data you need, please inform the ASD Team.

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