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NIST Atomic Spectra Database
Ionization Energies Data

Se (all spectra)
34 Data Rows Found

Example of how to reference these results:
Kramida, A., Ralchenko, Yu., Reader, J., and NIST ASD Team (2014). NIST Atomic Spectra Database (ver. 5.2), [Online]. Available: http://physics.nist.gov/asd [2014, November 28]. 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 
34  Selenium  Se  [Ar]3d104s24p4   3P2    9.752392(15)            L2647,L4168,L5688 
34  Selenium  As  [Ar]3d104s24p3   43/2    21.196(10)               L17234c100 
34  Selenium  Ge  [Ar]3d104s24p2   3P0    31.697(19)               L17867 
34  Selenium  Ga  [Ar]3d104s24p   21/2    42.9469(30)              L925 
34  Selenium  Zn  [Ar]3d104s2   1S0    [68.30(10)]               L16139 
34  Selenium  Cu  [Ar]3d104s   2S1/2    81.827(30)               L4300 
34  Selenium  Ni  [Ar]3d10   1S0    155.327(12)               L6168 
34  Selenium  Co  [Ar]3d9   2D5/2    (184.0(21))                L8672c99 
34  Selenium  Fe  [Ar]3d8   3F4    (219.0(22))                L8672c99 
34  Selenium  Mn  [Ar]3d7   4F9/2    (255.0(22))                L8672c99 
34  Selenium  Cr  [Ar]3d6   5D4    (291.0(24))                L8672c99 
34  Selenium  [Ar]3d5   6S5/2    (342.9(25))                L8672c99 
34  Selenium  Ti  [Ar]3d4   5D0    (383.0(30))                L8672c99 
34  Selenium  Sc  [Ar]3d3   4F3/2    (426.0(30))                L8672c99 
34  Selenium  Ca  [Ar]3d2   3F2    (473.0(30))                L8672c99 
34  Selenium  [Ar]3d   2D3/2    (517.0(30))                L8672c99 
34  Selenium  Ar  [Ne]3s23p6   1S0    [650.5(21)]                L11770 
34  Selenium  Cl  [Ne]3s23p5   23/2    [693.4(7)]                 L11770 
34  Selenium  [Ne]3s23p4   3P2    [739.8(11)]                L11770 
34  Selenium  [Ne]3s23p3   43/2    [798.0(30)]                L11770 
34  Selenium  Si  [Ne]3s23p2   3P0    [845.8(20)]                L11770 
34  Selenium  Al  [Ne]3s23p   21/2    [887(4)]                   L11770 
34  Selenium  Mg  [Ne]3s2   1S0    [989.6(13)]                L11770 
34  Selenium  Na  [Ne]3s   2S1/2    [1 036.36(3)]                L11770 
34  Selenium  Ne  1s22s22p6   1S0    [2 540.7(14)]                L11770 
34  Selenium  1s22s22p5   23/2    [2 674(5)]                   L11770 
34  Selenium  1s22s22p4   3P2    [2 820(6)]                   L11770 
34  Selenium  1s22s22p3   43/2    [2 964(22)]                  L11770 
34  Selenium  1s22s22p2   3P0    [3 145.9(30)]                L11770 
34  Selenium  1s22s22p   21/2    [3 301.8(21)]                L11770 
34  Selenium  Be  1s22s2   1S0    [3 507(3)]                   L11770 
34  Selenium  Li  1s22s   2S1/2    (3 636.526(7))               L16264c99 
34  Selenium  He  1s2   1S0    (15 367.4907(30))             L12128 
34  Selenium  1s   2S1/2    (15 968.083(9))               L7188 
Notes:
Designations used in the ground shell lists:
[Ne] = 1s22s22p6
[Ar] = 1s22s22p63s23p6
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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