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NIST Atomic Spectra Database
Ionization Energies Data

Ce (all spectra)
58 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, May 7]. 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
--------|----------|-------------|-------------------|----------------|--------------------------------------|----------------------|-------------
     58 | Cerium   | Ce          | [Xe].4f.5d.6s2    | 1G*<4>         |                5.5386                |             0.0004   |       L4277
     58 | Cerium   | La          | [Xe].4f.5d2       | 4H*<7/2>       |              [10.956]                |             0.020    |  L19870c180
     58 | Cerium   | Ba          | [Xe].4f2          | 3H<4>          |              [20.1974]               |             0.0025   | L3974,L3420
     58 | Cerium   | Cs          | [Xe].4f           | 2F*<5/2>       |              [36.906]                |             0.009    |      L14976
     58 | Cerium   | Xe          | [Cd].5p6          | 1S0            |              [65.55]                 |             0.25     |       L3974
     58 | Cerium   | I           | [Cd].5p5          | 2P*<3/2>       |              [77.6]                  |             1.2      | L3974,L3749
     58 | Cerium   | Te          | [Cd].5p4          | 3P<2>          |              (91.0)                  |             2.0      |    L8672c99
     58 | Cerium   | Sb          | [Cd].5p3          | 4S*<3/2>       |             (106.0)                  |             2.1      |    L8672c99
     58 | Cerium   | Sn          | [Cd].5p2          | 3P0            |             (125.0)                  |             2.2      |    L8672c99
     58 | Cerium   | In          | [Cd].5p           | 2P*<1/2>       |             (140.0)                  |             2.2      |    L8672c99
     58 | Cerium   | Cd          | [Kr].4d10.5s2     | 1S0            |             (172.0)                  |             2.4      |    L8672c99
     58 | Cerium   | Ag          | [Kr].4d10.5s      | 2S<1/2>        |             [192.24]                 |             0.12     |       L5532
     58 | Cerium   | Pd          | [Kr].4d10         | 1S0            |             (312)                    |             3        |    L8672c99
     58 | Cerium   | Rh          | [Kr].4d9          | 2D<5/2>        |             (340)                    |             3        |    L8672c99
     58 | Cerium   | Ru          | [Kr].4d8          | 3F<4>          |             (371)                    |             3        |    L8672c99
     58 | Cerium   | Tc          | [Kr].4d7          | 4F<9/2>        |             (403)                    |             3        |    L8672c99
     58 | Cerium   | Mo          | [Kr].4d6          | 5D<4>          |             (435)                    |             3        |    L8672c99
     58 | Cerium   | Nb          | [Kr].4d5          | 6S<5/2>        |             (472)                    |             3        |    L8672c99
     58 | Cerium   | Zr          | [Kr].4d4          | 5D0            |             (509)                    |             3        |    L8672c99
     58 | Cerium   | Y           | [Kr].4d3          | 4F<3/2>        |             (543)                    |             4        |    L8672c99
     58 | Cerium   | Sr          | [Kr].4d2          | 3F<2>          |             (579)                    |             4        |    L8672c99
     58 | Cerium   | Rb          | [Kr].4d           | 2D<3/2>        |             (613)                    |             4        |    L8672c99
     58 | Cerium   | Kr          | [Ar].3d10.4s2.4p6 | 1S0            |             (749)                    |             4        |    L8672c99
     58 | Cerium   | Br          | [Ar].3d10.4s2.4p5 | 2P*<3/2>       |             (785)                    |             4        |    L8672c99
     58 | Cerium   | Se          | [Ar].3d10.4s2.4p4 | 3P<2>          |             (824)                    |             4        |    L8672c99
     58 | Cerium   | As          | [Ar].3d10.4s2.4p3 | 4S*<3/2>       |             (862)                    |             4        |    L8672c99
     58 | Cerium   | Ge          | [Ar].3d10.4s2.4p2 | 3P0            |             (924)                    |             4        |    L8672c99
     58 | Cerium   | Ga          | [Ar].3d10.4s2.4p  | 2P*<1/2>       |             (965)                    |             4        |    L8672c99
     58 | Cerium   | Zn          | [Ar].3d10.4s2     | 1S0            |            (1060)                    |             4        |    L8672c99
     58 | Cerium   | Cu          | [Ar].3d10.4s      | 2S<1/2>        |            [1103.5]                  |             0.5      |      L10278
     58 | Cerium   | Ni          | [Ar].3d10         | 1S0            |            (1908)                    |             4        |    L8672c99
     58 | Cerium   | Co          | [Ar].3d9          | 2D<5/2>        |            (1994)                    |             4        |    L8672c99
     58 | Cerium   | Fe          | [Ar].3d8          | 3F<4>          |            (2087)                    |             4        |    L8672c99
     58 | Cerium   | Mn          | [Ar].3d7          | 4F<9/2>        |            (2185)                    |             5        |    L8672c99
     58 | Cerium   | Cr          | [Ar].3d6          | <4>            |            (2280)                    |             5        |    L8672c99
     58 | Cerium   | V           | [Ar].3d5          | <5/2>          |            (2378)                    |             5        |    L8672c99
     58 | Cerium   | Ti          | [Ar].3d4          | 5D0            |            (2500)                    |             5        |    L8672c99
     58 | Cerium   | Sc          | [Ar].3d3          | 4F<3/2>        |            (2600)                    |             4        |    L8672c99
     58 | Cerium   | Ca          | [Ar].3d2          | 3F<2>          |            (2706)                    |             4        |    L8672c99
     58 | Cerium   | K           | [Ar].3d           | 2D<3/2>        |            (2806)                    |             4        |    L8672c99
     58 | Cerium   | Ar          | [Ne].3s2.3p6      | 1S0            |            (3087)                    |             4        |    L8672c99
     58 | Cerium   | Cl          | [Ne].3s2.3p5      | 2P*<3/2>       |            (3176)                    |             4        |    L8672c99
     58 | Cerium   | S           | [Ne].3s2.3p4      | 3P<2>          |            (3274)                    |             4        |    L8672c99
     58 | Cerium   | P           | [Ne].3s2.3p3      | 2P*<3/2>       |            (3366)                    |             4        |    L8672c99
     58 | Cerium   | Si          | [Ne].3s2.3p2      | 3P0            |            (3570)                    |             4        |    L8672c99
     58 | Cerium   | Al          | [Ne].3s2.3p       | 2P*<1/2>       |            (3672)                    |             4        |    L8672c99
     58 | Cerium   | Mg          | [Ne].3s2          | 1S0            |            (3865)                    |             4        |    L8672c99
     58 | Cerium   | Na          | [Ne].3s           | 2S<1/2>        |            (3963)                    |             4        |    L8672c99
     58 | Cerium   | Ne          | 1s2.2s2.2p6       | 1S0            |            (9020)                    |             4        |    L8672c99
     58 | Cerium   | F           | 1s2.2s2.2p5       | 2P*<3/2>       |            (9269)                    |             4        |    L8672c99
     58 | Cerium   | O           | 1s2.2s2.2p4       | 3P<2>          |            (9545)                    |             4        |    L8672c99
     58 | Cerium   | N           | 1s2.2s2.2p3       | (0,3/2)*<3/2>  |            (9803)                    |             4        |    L8672c99
     58 | Cerium   | C           | 1s2.2s2.2p2       | 3P0            |           (10542)                    |             4        |    L8672c99
     58 | Cerium   | B           | 1s2.2s2.2p        | 2P*<1/2>       |           (10840)                    |             5        |    L8672c99
     58 | Cerium   | Be          | 1s2.2s2           | 1S0            |           (11210)                    |             5        |    L8672c99
     58 | Cerium   | Li          | 1s2.2s            | 2S<1/2>        |           (11459.85)                 |             0.06     |   L16264c99
     58 | Cerium   | He          | 1s2               | 1S0            |           (46840.31)                 |             0.05     |      L21139
     58 | Cerium   | H           | 1s                | 2S<1/2>        |           (47965.89)                 |             0.03     |      L19200
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Notes:
(a) Designations used in the ground shell lists:
     [Ne] = 1s2.2s2.2p6
     [Ar] = 1s2.2s2.2p6.3s2.3p6
     [Kr] = 1s2.2s2.2p6.3s2.3p6.3d10.4s2.4p6
     [Cd] = 1s2.2s2.2p6.3s2.3p6.3d10.4s2.4p6.4d10.5s2
     [Xe] = 1s2.2s2.2p6.3s2.3p6.3d10.4s2.4p6.4d10.5s2.5p6

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