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NIST Atomic Spectra Database
Ionization Energies Data

Cu (all spectra)
29 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.   Ion  Charge   El.  name   Ionization  Energy 
 (eV) 		 Uncertainty
 (eV) 		  References 
29  0  Copper    7.726380                 0.000004   L14897 
29  +1  Copper    20.29239                  0.00006    L869,L19804 
29  +2  Copper    36.841                    0.012      L10559,L2987 
29  +3  Copper    [57.38]                    0.05       L10559,L5144 
29  +4  Copper    [79.8]                     0.7        L10559,L241 
29  +5  Copper    [103.0]                     1.0        L10559,L241 
29  +6  Copper    [139.0]                     1.2        L10559,L241c99 
29  +7  Copper    (166.0)                     2.1        L8672c99 
29  +8  Copper    (198.0)                     2.2        L8672c99 
29  +9  Copper    [232.2]                     0.5        L241c99 
29  +10  Copper    265.33                     0.25       L10559 
29  +11  Copper    [367.0]                     0.9        L11770 
29  +12  Copper    [401.0]                     0.3        L11770 
29  +13  Copper    [436.0]                     0.6        L11770 
29  +14  Copper    [483.1]                     0.9        L11770 
29  +15  Copper    [518.7]                     1.2        L11770 
29  +16  Copper    [552.8]                     2.1        L11770 
29  +17  Copper    [632.5]                     0.6        L11770 
29  +18  Copper    [670.608]                   0.020      L11770 
29  +19  Copper    [1 690.5]                     0.9        L11770 
29  +20  Copper    [1 800]                       3          L11770 
29  +21  Copper    [1 918]                       4          L11770 
29  +22  Copper    [2 044]                       6          L11770 
29  +23  Copper    [2 179.4]                     1.5        L11770 
29  +24  Copper    [2 307.3]                     1.0        L11770 
29  +25  Copper    [2 479.1]                     2.2        L11770 
29  +26  Copper    (2 586.954)                   0.007      L16264c99 
29  +27  Copper    (11 062.4309)                  0.0011     L21139 
29  +28  Copper    (11 567.6237)                  0.0005     L19200 

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