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NIST Atomic Spectra Database
Ionization Energies Data

Sc (all spectra)
21 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 19]. 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 
21  Scandium  Sc  [Ar]3d4s2   2D3/2    6.56149                  0.00006    L7185,L2110 
21  Scandium  Ca  [Ar]3d4s   3D1    12.79977                  0.00025    L7185,L5141 
21  Scandium  K  [Ar]3d   2D3/2    24.756839                 0.000012   L1891,L7185 
21  Scandium  Ar  [Ne]3s23p6   1S0    73.4894                   0.0004     L7185,L2826 
21  Scandium  Cl  [Ne]3s23p5   2P°3/2    [91.95]                    0.03       L11770 
21  Scandium  S  [Ne]3s23p4   3P2    [110.68]                    0.05       L7185 
21  Scandium  P  [Ne]3s23p3   4S°3/2    [137.99]                    0.25       L7185 
21  Scandium  Si  [Ne]3s23p2   3P0    [158.08]                    0.25       L7185 
21  Scandium  Al  [Ne]3s23p   2P°1/2    180.03                     0.12       L7185 
21  Scandium  Mg  [Ne]3s2   1S0    [225.18]                    0.05       L7185 
21  Scandium  Na  [Ne]3s   2S1/2    [249.798]                   0.005      L10106 
21  Scandium  Ne  1s22s22p6   1S0    687.36                     0.12       L7185 
21  Scandium  F  1s22s22p5   2P°3/2    [757.7]                     1.0        L11770 
21  Scandium  O  1s22s22p4   3P2    [833.2]                     1.4        L11770 
21  Scandium  N  1s22s22p3   4S°3/2    [926.5]                     0.7        L11770 
21  Scandium  C  1s22s22p2   3P0    [1 008.6]                     0.4        L11770 
21  Scandium  B  1s22s22p   2P°1/2    [1 093.5]                     0.4        L11770 
21  Scandium  Be  1s22s2   1S0    [1 213.1]                     0.4        L11770 
21  Scandium  Li  1s22s   2S1/2    (1 287.957)                   0.007      L16264c99 
21  Scandium  He  1s2   1S0    (5 674.9036)                  0.0004     L21139 
21  Scandium  H  1s   2S1/2    (6 033.75643)                 0.00009    L19200 
Notes:
a Designations used in the ground shell lists:
[Ne] = 1s22s22p6
[Ar] = 1s22s22p63s23p6

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