NIST Atomic Spectra Database Ionization Energies Data
As (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 2]. 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 --------|----------|-------------|-------------------|--------------|--------------------------------------|----------------------|----------- 33 | Arsenic | As | [Ar].3d10.4s2.4p3 | 4S*<3/2> | 9.78855 | 0.00025 | L1351 33 | Arsenic | Ge | [Ar].3d10.4s2.4p2 | 3P0 | 18.5892 | 0.0010 | L820 33 | Arsenic | Ga | [Ar].3d10.4s2.4p | 2P*<1/2> | 28.349 | 0.012 | L9358 33 | Arsenic | Zn | [Ar].3d10.4s2 | 1S0 | 50.15 | 0.06 | L9358 33 | Arsenic | Cu | [Ar].3d10.4s | 2S<1/2> | 62.77 | 0.06 | L5339 33 | Arsenic | Ni | [Ar].3d10 | 1S0 | 121.19 | 0.06 | L11275 33 | Arsenic | Co | [Ar].3d9 | 2D<5/2> | (147.0) | 2.0 | L8672c99 33 | Arsenic | Fe | [Ar].3d8 | 3F<4> | (180.0) | 2.1 | L8672c99 33 | Arsenic | Mn | [Ar].3d7 | 4F<9/2> | (213.0) | 2.2 | L8672c99 33 | Arsenic | Cr | [Ar].3d6 | 5D<4> | (247.0) | 2.2 | L8672c99 33 | Arsenic | V | [Ar].3d5 | 6S<5/2> | (296.0) | 2.4 | L8672c99 33 | Arsenic | Ti | [Ar].3d4 | 5D0 | (333.0) | 2.5 | L8672c99 33 | Arsenic | Sc | [Ar].3d3 | 4F<3/2> | (375) | 3 | L8672c99 33 | Arsenic | Ca | [Ar].3d2 | 3F<2> | (418) | 3 | L8672c99 33 | Arsenic | K | [Ar].3d | 2D<3/2> | (460) | 3 | L8672c99 33 | Arsenic | Ar | [Ne].3s2.3p6 | 1S0 | [587.6] | 1.9 | L11770 33 | Arsenic | Cl | [Ne].3s2.3p5 | 2P*<3/2> | [628.8] | 0.6 | L11770 33 | Arsenic | S | [Ne].3s2.3p4 | 3P<2> | [672.9] | 0.9 | L11770 33 | Arsenic | P | [Ne].3s2.3p3 | 4S*<3/2> | [728.9] | 2.2 | L11770 33 | Arsenic | Si | [Ne].3s2.3p2 | 3P0 | [774.0] | 1.8 | L11770 33 | Arsenic | Al | [Ne].3s2.3p | 2P*<1/2> | [814] | 4 | L11770 33 | Arsenic | Mg | [Ne].3s2 | 1S0 | [911.7] | 1.1 | L11770 33 | Arsenic | Na | [Ne].3s | 2S<1/2> | [956.79] | 0.03 | L11770 33 | Arsenic | Ne | 1s2.2s2.2p6 | 1S0 | [2356.9] | 1.4 | L11770 33 | Arsenic | F | 1s2.2s2.2p5 | 2P*<3/2> | [2486] | 4 | L11770 33 | Arsenic | O | 1s2.2s2.2p4 | 3P<2> | [2626] | 6 | L11770 33 | Arsenic | N | 1s2.2s2.2p3 | 4S*<3/2> | [2766] | 21 | L11770 33 | Arsenic | C | 1s2.2s2.2p2 | 3P0 | [2938] | 3 | L11770 33 | Arsenic | B | 1s2.2s2.2p | 2P*<1/2> | [3088.1] | 1.9 | L11770 33 | Arsenic | Be | 1s2.2s2 | 1S0 | [3287] | 3 | L11770 33 | Arsenic | Li | 1s2.2s | 2S<1/2> | (3411.643) | 0.007 | L16264c99 33 | Arsenic | He | 1s2 | 1S0 | (14447.6799) | 0.0025 | L21139 33 | Arsenic | H | 1s | 2S<1/2> | (15028.9251) | 0.0010 | L19200 ---------------------------------------------------------------------------------------------------------------------------------------------- Notes: (a) Designations used in the ground shell lists: [Ne] = 1s2.2s2.2p6 [Ar] = 1s2.2s2.2p6.3s2.3p6
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