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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 (2023). NIST Atomic Spectra Database (ver. 5.11), [Online]. Available: https://physics.nist.gov/asd [2024, April 23]. 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    5.13907696                 0.00000025   L10921,L9648 
11  Sodium  Ne  1s22s22p6   1S0    47.28636                    0.00025      L914 
11  Sodium  F  1s22s22p5   2P°3/2    [71.6200]                    0.0012       L5793,L2720 
11  Sodium  O  1s22s22p4   3P2    [98.936]                     0.012        L11770 
11  Sodium  N  1s22s22p3   4S°3/2    138.404                      0.012        L7482 
11  Sodium  C  1s22s22p2   3P0    [172.23]                      0.05         L11770 
11  Sodium  B  1s22s22p   2P°1/2    [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    (1 465.0992)                    0.0007       L21139 
11  Sodium  H  1s   2S1/2    (1 648.702285)                  0.000005     L19200 
Notes:
a Designations used in the ground shell lists:
[Ne] = 1s22s22p6

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