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. | Sp. Name. | Ion Charge | El. name | Isoel. Seq. | Ground Shells a | Ground Level | Ionized Level | Ionization Energy (eV) |
Uncertainty (eV) |
References |
---|---|---|---|---|---|---|---|---|---|---|
55 | Cs I | 0 | Cesium | Cs | [Xe]6s | 2S1/2 | 5s25p6 1S0 | 3.89390572743 | 0.00000000017 | L19479 |
55 | Cs II | +1 | Cesium | Xe | [Cd]5p6 | 1S0 | 5s25p5 2P°3/2 | 23.15745 | 0.00006 | L6838 |
55 | Cs III | +2 | Cesium | I | [Cd]5p5 | 2P°3/2 | 5s25p4 3P2 | [33.195] | 0.004 | L14869 |
55 | Cs IV | +3 | Cesium | Te | [Cd]5p4 | 3P2 | 5s25p3 4S°3/2 | (43.0) | 1.7 | L8672c99 |
55 | Cs V | +4 | Cesium | Sb | [Cd]5p3 | 4S°3/2 | 5s25p2 3P0 | (56.0) | 1.9 | L8672c99 |
55 | Cs VI | +5 | Cesium | Sn | [Cd]5p2 | 3P0 | 5s25p 2P°1/2 | (69.1) | 2.0 | L8672c99 |
55 | Cs VII | +6 | Cesium | In | [Cd]5p | 2P°1/2 | 5s2 1S0 | (82.9) | 2.0 | L8672c99 |
55 | Cs VIII | +7 | Cesium | Cd | [Kr]4d105s2 | 1S0 | 5s 2S1/2 | [110.1] | 0.6 | L6980 |
55 | Cs IX | +8 | Cesium | Ag | [Kr]4d105s | 2S1/2 | 4d10 1S0 | [125.61] | 0.09 | L5438 |
55 | Cs X | +9 | Cesium | Pd | [Kr]4d10 | 1S0 | 4d9 2D5/2 | 213.3 | 2.5 | L11384c99 |
55 | Cs XI | +10 | Cesium | Rh | [Kr]4d9 | 2D5/2 | 4d8 3F4 | (233.0) | 2.4 | L8672c99 |
55 | Cs XII | +11 | Cesium | Ru | [Kr]4d8 | 3F4 | 4d7 4F9/2 | (261.0) | 2.5 | L8672c99 |
55 | Cs XIII | +12 | Cesium | Tc | [Kr]4d7 | 4F9/2 | 4d6 5D4 | (289) | 3 | L8672c99 |
55 | Cs XIV | +13 | Cesium | Mo | [Kr]4d6 | 5D4 | 4d5 6S5/2 | (316) | 3 | L8672c99 |
55 | Cs XV | +14 | Cesium | Nb | [Kr]4d5 | 6S5/2 | 4d4 5D0 | (352) | 3 | L8672c99 |
55 | Cs XVI | +15 | Cesium | Zr | [Kr]4d4 | 5D0 | 4d3 4F3/2 | (382) | 3 | L8672c99 |
55 | Cs XVII | +16 | Cesium | Y | [Kr]4d3 | 4F3/2 | 4d2 3F2 | (413) | 3 | L8672c99 |
55 | Cs XVIII | +17 | Cesium | Sr | [Kr]4d2 | 3F2 | 4d 2D3/2 | (445) | 3 | L8672c99 |
55 | Cs XIX | +18 | Cesium | Rb | [Kr]4d | 2D3/2 | 4p6 1S0 | (476) | 3 | L8672c99 |
55 | Cs XX | +19 | Cesium | Kr | [Ar]3d104s24p6 | 1S0 | 4p5 2P°3/2 | (597) | 4 | L8672c99 |
55 | Cs XXI | +20 | Cesium | Br | [Ar]3d104s24p5 | 2P°3/2 | 4p4 3P2 | (629) | 4 | L8672c99 |
55 | Cs XXII | +21 | Cesium | Se | [Ar]3d104s24p4 | 3P2 | 4p3 4S°3/2 | (666) | 4 | L8672c99 |
55 | Cs XXIII | +22 | Cesium | As | [Ar]3d104s24p3 | 4S°3/2 | 4p2 3P0 | (700) | 4 | L8672c99 |
55 | Cs XXIV | +23 | Cesium | Ge | [Ar]3d104s24p2 | 3P0 | 4p 2P°1/2 | (753) | 4 | L8672c99 |
55 | Cs XXV | +24 | Cesium | Ga | [Ar]3d104s24p | 2P°1/2 | 4s2 1S0 | (791) | 4 | L8672c99 |
55 | Cs XXVI | +25 | Cesium | Zn | [Ar]3d104s2 | 1S0 | 4s 2S1/2 | (875) | 4 | L8672c99 |
55 | Cs XXVII | +26 | Cesium | Cu | [Ar]3d104s | 2S1/2 | 3d10 1S0 | [916.1] | 0.5 | L10278 |
55 | Cs XXVIII | +27 | Cesium | Ni | [Ar]3d10 | 1S0 | 3d9 2D5/2 | (1 592) | 4 | L8672c99 |
55 | Cs XXIX | +28 | Cesium | Co | [Ar]3d9 | 2D5/2 | 3d8 3F4 | (1 672) | 4 | L8672c99 |
55 | Cs XXX | +29 | Cesium | Fe | [Ar]3d8 | (0,4)4 | 3d7 4F9/2 | (1 757) | 4 | L8672c99 |
55 | Cs XXXI | +30 | Cesium | Mn | [Ar]3d7 | 4F9/2 | 3d6 5D4 | (1 848) | 4 | L8672c99 |
55 | Cs XXXII | +31 | Cesium | Cr | [Ar]3d6 | 5D4 | 3d5 6S5/2 | (1 936) | 4 | L8672c99 |
55 | Cs XXXIII | +32 | Cesium | V | [Ar]3d5 | 6S5/2 | 3d4 5D0 | (2 029) | 4 | L8672c99 |
55 | Cs XXXIV | +33 | Cesium | Ti | [Ar]3d4 | 5D0 | 3d3 4F3/2 | (2 137) | 5 | L8672c99 |
55 | Cs XXXV | +34 | Cesium | Sc | [Ar]3d3 | 4F3/2 | 3d2 3F2 | (2 230) | 5 | L8672c99 |
55 | Cs XXXVI | +35 | Cesium | Ca | [Ar]3d2 | 3F2 | 3d 2D3/2 | (2 329) | 5 | L8672c99 |
55 | Cs XXXVII | +36 | Cesium | K | [Ar]3d | 2D3/2 | 3p6 1S0 | (2 422) | 5 | L8672c99 |
55 | Cs XXXVIII | +37 | Cesium | Ar | [Ne]3s23p6 | 1S0 | 3p5 2P°3/2 | (2 683) | 4 | L8672c99 |
55 | Cs XXXIX | +38 | Cesium | Cl | [Ne]3s23p5 | 2P°3/2 | 3p4 3P2 | (2 767) | 4 | L8672c99 |
55 | Cs XL | +39 | Cesium | S | [Ne]3s23p4 | 3P2 | 3p3 4S°3/2 | (2 859) | 4 | L8672c99 |
55 | Cs XLI | +40 | Cesium | P | [Ne]3s23p3 | 4S°3/2 | 3p2 3P0 | (2 945) | 4 | L8672c99 |
55 | Cs XLII | +41 | Cesium | Si | [Ne]3s23p2 | 3P0 | 3p 2P°1/2 | (3 118) | 4 | L8672c99 |
55 | Cs XLIII | +42 | Cesium | Al | [Ne]3s23p | 2P°1/2 | 3s2 1S0 | (3 214) | 4 | L8672c99 |
55 | Cs XLIV | +43 | Cesium | Mg | [Ne]3s2 | 1S0 | 3s 2S1/2 | (3 392) | 4 | L8672c99 |
55 | Cs XLV | +44 | Cesium | Na | [Ne]3s | 2S1/2 | 2p6 1S0 | (3 485) | 4 | L8672c99 |
55 | Cs XLVI | +45 | Cesium | Ne | 1s22s22p6 | 1S0 | 2p5 2P°3/2 | (7 989) | 4 | L8672c99 |
55 | Cs XLVII | +46 | Cesium | F | 1s22s22p5 | 2P°3/2 | 2p4 3P2 | (8 224) | 4 | L8672c99 |
55 | Cs XLVIII | +47 | Cesium | O | 1s22s22p4 | (0,2)2 | 2p21/22p3/2 (0,3/2)°3/2 | (8 484) | 4 | L8672c99 |
55 | Cs XLIX | +48 | Cesium | N | 1s22s22p3 | (0,3/2)°3/2 | 2p2 3P0 | (8 726) | 4 | L8672c99 |
55 | Cs L | +49 | Cesium | C | 1s22s22p2 | 3P0 | 2p 2P°1/2 | (9 350) | 4 | L8672c99 |
55 | Cs LI | +50 | Cesium | B | 1s22s22p | 2P°1/2 | 2s2 1S0 | (9 629) | 4 | L8672c99 |
55 | Cs LII | +51 | Cesium | Be | 1s22s2 | 1S0 | 2s 2S1/2 | (9 974) | 4 | L8672c99 |
55 | Cs LIII | +52 | Cesium | Li | 1s22s | 2S1/2 | 1s2 1S0 | (10 208.78) | 0.05 | L16264c99 |
55 | Cs LIV | +53 | Cesium | He | 1s2 | 1S0 | 1s 2S1/2 | (41 861.08) | 0.04 | L21139 |
55 | Cs LV | +54 | Cesium | H | 1s | 2S1/2 | (42 913.144) | 0.020 | L19200 |
If you did not find the data you need, please inform the ASD Team.