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NIST Atomic Spectra Database
Ionization Energies Data

Si (all spectra)
14 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.   El.  name   Isoel.  Seq.   Ground  Shells a   Ground  Level   Ionization  Energy 
 (eV) 
Uncertainty
 (eV) 
 References 
14  Silicon  Si  [Ne]3s23p2   3P0    8.15168                  0.00003    L5815 
14  Silicon  Al  [Ne]3s23p   21/2    16.34585                  0.00004    L5815 
14  Silicon  Mg  [Ne]3s2   1S0    33.49300                  0.00009    L5815 
14  Silicon  Na  [Ne]3s   2S1/2    45.14179                  0.00007    L5815,L6098 
14  Silicon  Ne  1s22s22p6   1S0    166.767                    0.003      L3934 
14  Silicon  1s22s22p5   23/2    [205.279]                   0.005      c192 
14  Silicon  1s22s22p4   3P2    [246.57]                    0.05       c193 
14  Silicon  1s22s22p3   43/2    [303.59]                    0.05       c193 
14  Silicon  1s22s22p2   3P0    [351.28]                    0.06       c193 
14  Silicon  1s22s22p   21/2    [401.38]                    0.04       L11770 
14  Silicon  Be  1s22s2   1S0    [476.273]                   0.019      c192 
14  Silicon  Li  1s22s   2S1/2    (523.415)                   0.007      L16264c99 
14  Silicon  He  1s2   1S0    (2 437.65805)                 0.00017    L21139 
14  Silicon  1s   2S1/2    (2 673.177958)                0.000017   L19200 
Notes:
Designations used in the ground shell lists:
[Ne] = 1s22s22p6

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