NIST Atomic Spectra Database Ionization Energies Data
Cs (all spectra) |
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 1]. 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 --------|----------|-------------|-------------------|----------------|--------------------------------------|----------------------|----------- 55 | Cesium | Cs | [Xe].6s | 2S<1/2> | 3.89390572743 | 0.00000000017 | L19479 55 | Cesium | Xe | [Cd].5p6 | 1S0 | 23.15745 | 0.00006 | L6838 55 | Cesium | I | [Cd].5p5 | 2P*<3/2> | [33.195] | 0.004 | L14869 55 | Cesium | Te | [Cd].5p4 | 3P<2> | (43.0) | 1.7 | L8672c99 55 | Cesium | Sb | [Cd].5p3 | 4S*<3/2> | (56.0) | 1.9 | L8672c99 55 | Cesium | Sn | [Cd].5p2 | 3P0 | (69.1) | 2.0 | L8672c99 55 | Cesium | In | [Cd].5p | 2P*<1/2> | (82.9) | 2.0 | L8672c99 55 | Cesium | Cd | [Kr].4d10.5s2 | 1S0 | [110.1] | 0.6 | L6980 55 | Cesium | Ag | [Kr].4d10.5s | 2S<1/2> | [125.61] | 0.09 | L5438 55 | Cesium | Pd | [Kr].4d10 | 1S0 | 213.3 | 2.5 | L11384c99 55 | Cesium | Rh | [Kr].4d9 | 2D<5/2> | (233.0) | 2.4 | L8672c99 55 | Cesium | Ru | [Kr].4d8 | 3F<4> | (261.0) | 2.5 | L8672c99 55 | Cesium | Tc | [Kr].4d7 | 4F<9/2> | (289) | 3 | L8672c99 55 | Cesium | Mo | [Kr].4d6 | 5D<4> | (316) | 3 | L8672c99 55 | Cesium | Nb | [Kr].4d5 | 6S<5/2> | (352) | 3 | L8672c99 55 | Cesium | Zr | [Kr].4d4 | 5D0 | (382) | 3 | L8672c99 55 | Cesium | Y | [Kr].4d3 | 4F<3/2> | (413) | 3 | L8672c99 55 | Cesium | Sr | [Kr].4d2 | 3F<2> | (445) | 3 | L8672c99 55 | Cesium | Rb | [Kr].4d | 2D<3/2> | (476) | 3 | L8672c99 55 | Cesium | Kr | [Ar].3d10.4s2.4p6 | 1S0 | (597) | 4 | L8672c99 55 | Cesium | Br | [Ar].3d10.4s2.4p5 | 2P*<3/2> | (629) | 4 | L8672c99 55 | Cesium | Se | [Ar].3d10.4s2.4p4 | 3P<2> | (666) | 4 | L8672c99 55 | Cesium | As | [Ar].3d10.4s2.4p3 | 4S*<3/2> | (700) | 4 | L8672c99 55 | Cesium | Ge | [Ar].3d10.4s2.4p2 | 3P0 | (753) | 4 | L8672c99 55 | Cesium | Ga | [Ar].3d10.4s2.4p | 2P*<1/2> | (791) | 4 | L8672c99 55 | Cesium | Zn | [Ar].3d10.4s2 | 1S0 | (875) | 4 | L8672c99 55 | Cesium | Cu | [Ar].3d10.4s | 2S<1/2> | [916.1] | 0.5 | L10278 55 | Cesium | Ni | [Ar].3d10 | 1S0 | (1592) | 4 | L8672c99 55 | Cesium | Co | [Ar].3d9 | 2D<5/2> | (1672) | 4 | L8672c99 55 | Cesium | Fe | [Ar].3d8 | (0,4)<4> | (1757) | 4 | L8672c99 55 | Cesium | Mn | [Ar].3d7 | 4F<9/2> | (1848) | 4 | L8672c99 55 | Cesium | Cr | [Ar].3d6 | 5D<4> | (1936) | 4 | L8672c99 55 | Cesium | V | [Ar].3d5 | 6S<5/2> | (2029) | 4 | L8672c99 55 | Cesium | Ti | [Ar].3d4 | 5D0 | (2137) | 5 | L8672c99 55 | Cesium | Sc | [Ar].3d3 | 4F<3/2> | (2230) | 5 | L8672c99 55 | Cesium | Ca | [Ar].3d2 | 3F<2> | (2329) | 5 | L8672c99 55 | Cesium | K | [Ar].3d | 2D<3/2> | (2422) | 5 | L8672c99 55 | Cesium | Ar | [Ne].3s2.3p6 | 1S0 | (2683) | 4 | L8672c99 55 | Cesium | Cl | [Ne].3s2.3p5 | 2P*<3/2> | (2767) | 4 | L8672c99 55 | Cesium | S | [Ne].3s2.3p4 | 3P<2> | (2859) | 4 | L8672c99 55 | Cesium | P | [Ne].3s2.3p3 | 4S*<3/2> | (2945) | 4 | L8672c99 55 | Cesium | Si | [Ne].3s2.3p2 | 3P0 | (3118) | 4 | L8672c99 55 | Cesium | Al | [Ne].3s2.3p | 2P*<1/2> | (3214) | 4 | L8672c99 55 | Cesium | Mg | [Ne].3s2 | 1S0 | (3392) | 4 | L8672c99 55 | Cesium | Na | [Ne].3s | 2S<1/2> | (3485) | 4 | L8672c99 55 | Cesium | Ne | 1s2.2s2.2p6 | 1S0 | (7989) | 4 | L8672c99 55 | Cesium | F | 1s2.2s2.2p5 | 2P*<3/2> | (8224) | 4 | L8672c99 55 | Cesium | O | 1s2.2s2.2p4 | (0,2)<2> | (8484) | 4 | L8672c99 55 | Cesium | N | 1s2.2s2.2p3 | (0,3/2)*<3/2> | (8726) | 4 | L8672c99 55 | Cesium | C | 1s2.2s2.2p2 | 3P0 | (9350) | 4 | L8672c99 55 | Cesium | B | 1s2.2s2.2p | 2P*<1/2> | (9629) | 4 | L8672c99 55 | Cesium | Be | 1s2.2s2 | 1S0 | (9974) | 4 | L8672c99 55 | Cesium | Li | 1s2.2s | 2S<1/2> | (10208.78) | 0.05 | L16264c99 55 | Cesium | He | 1s2 | 1S0 | (41861.08) | 0.04 | L21139 55 | Cesium | H | 1s | 2S<1/2> | (42913.144) | 0.020 | L19200 ------------------------------------------------------------------------------------------------------------------------------------------------ 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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