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NIST Atomic Spectra Database
Ionization Energies Data

O (all spectra)
8 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, July 2]. 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 
8  0  Oxygen    13.618055                  0.000007    L74,L3760 
8  +1  Oxygen    35.12112                   0.00006     L11267,L10621 
8  +2  Oxygen    [54.93554]                  0.00012     L11770 
8  +3  Oxygen    77.41350                   0.00025     L648 
8  +4  Oxygen    113.8990                    0.0005      L7288 
8  +5  Oxygen    [138.1189]                   0.0021      L4713 
8  +6  Oxygen    (739.32697)                  0.00015     L21139 
8  +7  Oxygen    (871.4099138)                0.0000012   L19200 

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