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NIST Atomic Spectra Database
Ionization Energies Data

Nb (all spectra)
41 Data Rows Found 

Example of how to reference these results:
Kramida, A., Ralchenko, Yu., Reader, J., and NIST ASD Team (2020). NIST Atomic Spectra Database (ver. 5.8), [Online]. Available: https://physics.nist.gov/asd [2021, May 13]. 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) 
Uncertaintya 
 (eV) 
 References 
41  Niobium    6.75885                 0.00004   L6829 
41  +1  Niobium    [14.32]                     L3466 
41  +2  Niobium    [25.04]                     L17276 
41  +3  Niobium    37.611                   0.022     L12094 
41  +4  Niobium    50.5728                  0.0025    L5437 
41  +5  Niobium    [102.069]                  0.006     L11271 
41  +6  Niobium    119.1                     0.4       L2933 
41  +7  Niobium    (136.0)                    2.1       L8672c99 
41  +8  Niobium    [159.2]                    0.7       L5287 
41  +9  Niobium    (180.0)                    2.2       L8672c99 
41  +10  Niobium    [200.28]                   0.06      L6833 
41  +11  Niobium    [246.1]                    0.4       L6976 
41  +12  Niobium    268.59                    0.04      L4998 
41  +13  Niobium    [482.5]                    1.5       L10191 
41  +14  Niobium    (530)                      3         L8672c99 
41  +15  Niobium    (581)                      3         L8672c99 
41  +16  Niobium    (636)                      3         L8672c99 
41  +17  Niobium    (688)                      3         L8672c99 
41  +18  Niobium    (758)                      3         L8672c99 
41  +19  Niobium    (816)                      4         L8672c99 
41  +20  Niobium    (877)                      4         L8672c99 
41  +21  Niobium    (940)                      4         L8672c99 
41  +22  Niobium    (1 000)                      4         L8672c99 
41  +23  Niobium    [1 176]                      4         L11770 
41  +24  Niobium    [1 230.6]                    1.3       L11770 
41  +25  Niobium    [1 293.7]                    1.8       L11770 
41  +26  Niobium    [1 368]                      5         L11770 
41  +27  Niobium    [1 439]                      3         L11770 
41  +28  Niobium    [1 488]                      7         L11770 
41  +29  Niobium    [1 625.9]                    2.3       L11770 
41  +30  Niobium    [1 684.97]                   0.05      L11770 
41  +31  Niobium    [4 020.1]                    2.2       L11770 
41  +32  Niobium    [4 187]                      7         L11770 
41  +33  Niobium    [4 369]                      9         L11770 
41  +34  Niobium    [4 540]                      30         L11770 
41  +35  Niobium    [4 815]                      5         L11770 
41  +36  Niobium    [5 011]                      4         L11770 
41  +37  Niobium    [5 265]                      5         L11770 
41  +38  Niobium    (5 426.066)                  0.015     L16264c99 
41  +39  Niobium    (22 648.046)                  0.006     L12128 
41  +40  Niobium    (23 388.801)                  0.012     L7188 
Notes:
Uncertainties of some of the listed values are unknown.

If you did not find the data you need, please inform the ASD Team.

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