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NIST Atomic Spectra Database
Ionization Energies Data

Ni (all spectra)
28 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 30]. National Institute of Standards and Technology, Gaithersburg, MD. DOI: https://doi.org/10.18434/T4W30F
BibTex Citation (new window)
 

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At. num | El. Name | Isoel. Seq. | Ground Shells (a) | Ground Level |        Ionization Energy (eV)        |   Uncertainty (eV)   | References
--------|----------|-------------|-------------------|--------------|--------------------------------------|----------------------|---------------
     28 | Nickel   | Ni          | [Ar].3d8.4s2      | 3F<4>        |              7.639878                |           0.000017   |        L12369
     28 | Nickel   | Co          | [Ar].3d9          | 2D<5/2>      |             18.168838                |           0.000025   |    L7185,L897
     28 | Nickel   | Fe          | [Ar].3d8          | 3F<4>        |             35.187                   |           0.019      |        L11049
     28 | Nickel   | Mn          | [Ar].3d7          | 4F<9/2>      |            [54.92]                   |           0.25       |    L7185,L241
     28 | Nickel   | Cr          | [Ar].3d6          | 5D<4>        |            [76.06]                   |           0.06       |         L7185
     28 | Nickel   | V           | [Ar].3d5          | 6S<5/2>      |           [108.0]                    |           1.0        | L7185,L241c99
     28 | Nickel   | Ti          | [Ar].3d4          | 5D0          |           (132.0)                    |           2.0        |      L8672c99
     28 | Nickel   | Sc          | [Ar].3d3          | 4F<3/2>      |           (162.0)                    |           2.1        |      L8672c99
     28 | Nickel   | Ca          | [Ar].3d2          | 3F<2>        |           [193.2]                    |           0.5        |       L241c99
     28 | Nickel   | K           | [Ar].3d           | 2D<3/2>      |           [224.7]                    |           0.5        | L7185,L241c99
     28 | Nickel   | Ar          | [Ne].3s2.3p6      | 1S0          |           [319.5]                    |           0.7        |        L11770
     28 | Nickel   | Cl          | [Ne].3s2.3p5      | 2P*<3/2>     |           [351.6]                    |           0.3        |        L11770
     28 | Nickel   | S           | [Ne].3s2.3p4      | 3P<2>        |           [384.5]                    |           0.5        |        L11770
     28 | Nickel   | P           | [Ne].3s2.3p3      | 4S*<3/2>     |           [429.3]                    |           0.8        |        L11770
     28 | Nickel   | Si          | [Ne].3s2.3p2      | 3P0          |           [462.8]                    |           1.1        |        L11770
     28 | Nickel   | Al          | [Ne].3s2.3p       | 2P*<1/2>     |           [495.4]                    |           1.7        |        L11770
     28 | Nickel   | Mg          | [Ne].3s2          | 1S0          |           [571.07]                   |           0.12       |         L7185
     28 | Nickel   | Na          | [Ne].3s           | 2S<1/2>      |           [607.020]                  |           0.019      |        L11770
     28 | Nickel   | Ne          | 1s2.2s2.2p6       | 1S0          |           1540.1                     |           0.5        |         L9858
     28 | Nickel   | F           | 1s2.2s2.2p5       | 2P*<3/2>     |          [1646]                      |           3          |        L11770
     28 | Nickel   | O           | 1s2.2s2.2p4       | 3P<2>        |          [1758]                      |           4          |        L11770
     28 | Nickel   | N           | 1s2.2s2.2p3       | 4S*<3/2>     |          [1880]                      |           5          |        L11770
     28 | Nickel   | C           | 1s2.2s2.2p2       | 3P0          |          [2008.1]                    |           1.3        |        L11770
     28 | Nickel   | B           | 1s2.2s2.2p        | 2P*<1/2>     |          [2130.5]                    |           0.9        |        L11770
     28 | Nickel   | Be          | 1s2.2s2           | 1S0          |          [2295.6]                    |           2.1        |        L11770
     28 | Nickel   | Li          | 1s2.2s            | 2S<1/2>      |          (2399.259)                  |           0.007      |     L16264c99
     28 | Nickel   | He          | 1s2               | 1S0          |         (10288.8848)                 |           0.0010     |        L21139
     28 | Nickel   | H           | 1s                | 2S<1/2>      |         (10775.3948)                 |           0.0004     |        L19200
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Notes:
(a) Designations used in the ground shell lists:
     [Ne] = 1s2.2s2.2p6
     [Ar] = 1s2.2s2.2p6.3s2.3p6

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