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NIST Atomic Spectra Database
Ionization Energies Data

F (all spectra)
9 Data Rows Found 

Example of how to reference these results:
Kramida, A., Ralchenko, Yu., Reader, J., and NIST ASD Team (2019). NIST Atomic Spectra Database (ver. 5.7.1), [Online]. Available: https://physics.nist.gov/asd [2020, May 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   Ground  Level   Ionization  Energy 
 (eV) 
Uncertainty
 (eV) 
 References 
Fluorine  1s22s22p5   23/2    17.42282                 0.00005   L7481,L526 
Fluorine  1s22s22p4   3P2    34.97081                 0.00012   L369 
Fluorine  1s22s22p3   43/2    [62.70798]                0.00025   L11770 
Fluorine  1s22s22p2   3P0    [87.175]                  0.017     L11770 
Fluorine  1s22s22p   21/2    [114.249]                  0.006     L11770 
Fluorine  Be  1s22s2   1S0    157.16311                 0.00025   L6491 
Fluorine  Li  1s22s   2S1/2    [185.1868]                 0.0006    L6335 
Fluorine  He  1s2   1S0    [953.89804]                0.00010   L10054 
Fluorine  1s   2S1/2    (1 103.11747)                0.00005   L7188 

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