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NIST Atomic Spectra Database
Ionization Energies Data

Kr (all spectra)
36 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, March 29]. 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 
36  Krypton  Kr  [Ar]3d104s24p6   1S0    13.9996055                 0.0000020   L12196 
36  Krypton  Br  [Ar]3d104s24p5   23/2    24.35984                   0.00012     L7212,L353 
36  Krypton  Se  [Ar]3d104s24p4   3P2    35.838                     0.020       L15467 
36  Krypton  As  [Ar]3d104s24p3   43/2    50.85                      0.11        L9022c101 
36  Krypton  Ge  [Ar]3d104s24p2   3P0    [64.69]                     0.20        L12196,L16139 
36  Krypton  Ga  [Ar]3d104s24p   21/2    [78.49]                     0.20        L12196,L16139 
36  Krypton  Zn  [Ar]3d104s2   1S0    (109.13)                     0.05        L13202 
36  Krypton  Cu  [Ar]3d104s   2S1/2    125.802                     0.003       L10636 
36  Krypton  Ni  [Ar]3d10   1S0    [233.0]                      0.7         L10191 
36  Krypton  Co  [Ar]3d9   2D5/2    (268)                        3           L7212 
36  Krypton  Fe  [Ar]3d8   3F4    (308)                        3           L7212 
36  Krypton  Mn  [Ar]3d7   4F9/2    (350)                        3           L7212 
36  Krypton  Cr  [Ar]3d6   5D4    (391)                        4           L7212 
36  Krypton  [Ar]3d5   6S5/2    (446)                        3           L8672c99 
36  Krypton  Ti  [Ar]3d4   5D0    (492)                        5           L12196 
36  Krypton  Sc  [Ar]3d3   4F3/2    (540)                        3           L8672c99 
36  Krypton  Ca  [Ar]3d2   3F2    (591)                        3           L8672c99 
36  Krypton  [Ar]3d   2D3/2    (640)                        3           L8672c99 
36  Krypton  Ar  [Ne]3s23p6   1S0    [785.316]                    0.012       L11770 
36  Krypton  Cl  [Ne]3s23p5   23/2    [831.6]                      0.9         L11770 
36  Krypton  [Ne]3s23p4   3P2    [882.8]                      1.3         L11770 
36  Krypton  [Ne]3s23p3   43/2    [945]                        3           L11770 
36  Krypton  Si  [Ne]3s23p2   3P0    [999.0]                      2.4         L11770 
36  Krypton  Al  [Ne]3s23p   21/2    [1 042]                        5           L11770 
36  Krypton  Mg  [Ne]3s2   1S0    [1 155.0]                      1.6         L11770 
36  Krypton  Na  [Ne]3s   2S1/2    [1 205.23]                     0.04        L11770 
36  Krypton  Ne  1s22s22p6   1S0    [2 928.9]                      1.7         L11770 
36  Krypton  1s22s22p5   23/2    [3 072]                        5           L11770 
36  Krypton  1s22s22p4   3P2    [3 228]                        7           L11770 
36  Krypton  1s22s22p3   43/2    [3 380]                        30           L11770 
36  Krypton  1s22s22p2   3P0    [3 584]                        4           L11770 
36  Krypton  1s22s22p   21/2    [3 752.0]                      2.5         L11770 
36  Krypton  Be  1s22s2   1S0    [3 971]                        4           L11770 
36  Krypton  Li  1s22s   2S1/2    (4 109.083)                    0.009       L16264c99 
36  Krypton  He  1s2   1S0    (17 296.424)                    0.004       L21139 
36  Krypton  1s   2S1/2    (17 936.2405)                   0.0016      L19200 
Notes:
Designations used in the ground shell lists:
[Ne] = 1s22s22p6
[Ar] = 1s22s22p63s23p6

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