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NIST Atomic Spectra Database
Ionization Energies Data

Co (all spectra)
27 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 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 
27  Cobalt  Co  [Ar]3d74s2   4F9/2    7.88101(12)            L10545 
27  Cobalt  Fe  [Ar]3d8   3F4    17.0844(12)             L7185,L2115 
27  Cobalt  Mn  [Ar]3d7   4F9/2    [33.50(6)]               L7185,L17500 
27  Cobalt  Cr  [Ar]3d6   5D4    [51.27(10)]              L7185,L241 
27  Cobalt  [Ar]3d5   6S5/2    [79.50(20)]              L7185,L241 
27  Cobalt  Ti  [Ar]3d4   5D0    [102.0(2)]                L7185,L241 
27  Cobalt  Sc  [Ar]3d3   4F3/2    [128.9(5)]                L7185,L241c99 
27  Cobalt  Ca  [Ar]3d2   3F2    [157.8(6)]                L7185 
27  Cobalt  [Ar]3d   2D3/2    186.14(25)               L7185 
27  Cobalt  Ar  [Ne]3s23p6   1S0    [275.4(4)]                L7185 
27  Cobalt  Cl  [Ne]3s23p5   23/2    [305.32(23)]              L11770 
27  Cobalt  [Ne]3s23p4   3P2    [336.1(4)]                L11770 
27  Cobalt  [Ne]3s23p3   43/2    [378.5(7)]                L11770 
27  Cobalt  Si  [Ne]3s23p2   3P0    [410.0(10)]               L11770 
27  Cobalt  Al  [Ne]3s23p   21/2    [441.1(14)]               L11770 
27  Cobalt  Mg  [Ne]3s2   1S0    [511.96(6)]               L7185 
27  Cobalt  Na  [Ne]3s   2S1/2    [546.588(15)]             L11770c98 
27  Cobalt  Ne  1s22s22p6   1S0    1 397.2(5)                 L7185 
27  Cobalt  1s22s22p5   23/2    1 504.5(12)                L7185 
27  Cobalt  1s22s22p4   3P2    [1 606(4)]                  L11770 
27  Cobalt  1s22s22p3   43/2    [1 724(3)]                  L11770 
27  Cobalt  1s22s22p2   3P0    [1 844.0(11)]               L11770 
27  Cobalt  1s22s22p   21/2    [1 960.8(8)]                L11770 
27  Cobalt  Be  1s22s2   1S0    [2 119.4(19)]               L11770 
27  Cobalt  Li  1s22s   2S1/2    (2 218.876(7))              L16264c99 
27  Cobalt  He  1s2   1S0    (9 544.1829(12))            L12128 
27  Cobalt  1s   2S1/2    (10 012.122(4))              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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