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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 (2013). NIST Atomic Spectra Database (ver. 5.1), [Online]. Available: http://physics.nist.gov/asd [2014, August 22]. National Institute of Standards and Technology, Gaithersburg, MD.
BibTex Citation (new window)
 

 At. Num.   El.  name   Isoel.  Seq.   Ground  Shells a   Ground  Level   Ionization  Energy b 
 (eV) 
 References 
11  Sodium  Na  [Ne]3s   2S1/2    5.1390767(2)             L10921,L9648 
11  Sodium  Ne  1s22s22p6   1S0    47.28636(25)              L914 
11  Sodium  1s22s22p5   23/2    [71.6200(12)]              L5793,L2720 
11  Sodium  1s22s22p4   3P2    [98.936(12)]               L11770 
11  Sodium  1s22s22p3   43/2    138.404(12)                L7482 
11  Sodium  1s22s22p2   3P0    [172.23(5)]                 L11770 
11  Sodium  1s22s22p   21/2    [208.504(12)]               L11770 
11  Sodium  Be  1s22s2   1S0    [264.192(22)]               L11770 
11  Sodium  Li  1s22s   2S1/2    (299.856(7))                L16264c99 
11  Sodium  He  1s2   1S0    (1 465.13444(3))              L13237 
11  Sodium  1s   2S1/2    (1 648.7021(1))               L7188 
Notes:
Designations used in the ground shell lists:
[Ne] = 1s22s22p6
Uncertainty is given in parentheses after the value. It is expressed in the units of the last decimal place of the value.

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