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| NIST Atomic Spectra Database Ionization Energies Data
U (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
--------|----------|-------------|--------------------|-----------------|--------------------------------------|----------------------|-------------
92 | Uranium | U | [Rn].5f3.6d.7s2 | 5L*<6> | 6.19405 | 0.00006 | L5494,L7765
92 | Uranium | Pa | [Rn].5f3.7s2 | 4I*<9/2> | 11.6 | 0.4 | L14620
92 | Uranium | Th | [Rn].5f4 | 5I<4> | 19.8 | 0.3 | L14620
92 | Uranium | Ac | [Rn].5f3 | 4I*<9/2> | 36.7 | 1.0 | L14620
92 | Uranium | Ra | [Rn].5f2 | 3H<4> | (46.0) | 1.9 | L8672c99
92 | Uranium | Fr | [Rn].5f | 2F*<5/2> | [62.0] | 1.6 | L14620
92 | Uranium | Rn | [Hg].6p6 | 1S0 | (89.0) | 2.0 | L8672c99
92 | Uranium | At | [Hg].6p5 | 2P*<3/2> | (101.0) | 2.1 | L8672c99
92 | Uranium | Po | [Hg].6p4 | 3P<2> | (116.0) | 2.2 | L8672c99
92 | Uranium | Bi | [Hg].6p3 | 4S*<3/2> | (128.9) | 2.2 | L8672c99
92 | Uranium | Pb | [Hg].6p2 | 3P0 | (158.0) | 2.4 | L8672c99
92 | Uranium | Tl | [Hg].6p | 2P*<1/2> | (173.0) | 2.5 | L8672c99
92 | Uranium | Hg | [Xe].4f14.5d10.6s2 | 1S0 | (210) | 3 | L8672c99
92 | Uranium | Au | [Xe].4f14.5d10.6s | 2S<1/2> | (227) | 3 | L8672c99
92 | Uranium | Pt | [Xe].4f14.5d10 | 1S0 | (323) | 3 | L8672c99
92 | Uranium | Ir | [Xe].4f14.5d9 | 2D<5/2> | (348) | 3 | L8672c99
92 | Uranium | Os | [Xe].4f14.5d8 | 3F<4> | (375) | 3 | L8672c99
92 | Uranium | Re | [Xe].4f14.5d7 | 4F<9/2> | (402) | 3 | L8672c99
92 | Uranium | W | [Xe].4f14.5d6 | 5D<4> | (431) | 3 | L8672c99
92 | Uranium | Ta | [Xe].4f14.5d5 | 6S<5/2> | (458) | 4 | L8672c99
92 | Uranium | Hf | [Xe].4f14.5d4 | 5D0 | (497) | 4 | L8672c99
92 | Uranium | Lu | [Xe].4f14.5d3 | 4F<3/2> | (525) | 4 | L8672c99
92 | Uranium | Yb | [Xe].4f14.5d2 | 3F<2> | (557) | 4 | L8672c99
92 | Uranium | Tm | [Xe].4f14.5d | 2D<3/2> | (585) | 4 | L8672c99
92 | Uranium | Er | [Xe].4f14 | 1S0 | (730) | 40 | L582
92 | Uranium | Ho | [Cd].4f14.5p5 | 2P*<3/2> | (770) | 40 | L582
92 | Uranium | Dy | [Cd].4f14.5p4 | 3P<2> | (800) | 40 | L582
92 | Uranium | Tb | [Cd].4f14.5p3 | 2P*<3/2> | (840) | 40 | L582
92 | Uranium | Gd | [Cd].4f14.5p2 | 3P0 | (930) | 50 | L582
92 | Uranium | Eu | [Cd].4f14.5p | 2P*<1/2> | (970) | 50 | L582
92 | Uranium | Sm | [Cd].4f14 | 1S0 | (1070) | 50 | L582
92 | Uranium | Pm | [Kr].4d10.4f14.5s | 2S<1/2> | (1110) | 60 | L582
92 | Uranium | Nd | [Kr].4d10.4f14 | 1S0 | (1210) | 60 | L582
92 | Uranium | Pr | [Kr].4d10.4f13 | 2F*<7/2> | (1290) | 60 | L582
92 | Uranium | Ce | [Kr].4d10.4f12 | | (1370) | 70 | L582
92 | Uranium | La | [Kr].4d10.4f11 | 4I*<15/2> | (1440) | 70 | L582
92 | Uranium | Ba | [Kr].4d10.4f10 | 5I<8> | (1520) | 80 | L582
92 | Uranium | Cs | [Kr].4d10.4f9 | 6H*<15/2> | (1590) | 80 | L582
92 | Uranium | Xe | [Kr].4d10.4f8 | 7F<6> | (1670) | 80 | L582
92 | Uranium | I | [Kr].4d10.4f7 | 8S*<7/2> | (1750) | 90 | L582
92 | Uranium | Te | [Kr].4d10.4f6 | 7F0 | (1830) | 90 | L582
92 | Uranium | Sb | [Kr].4d10.4f5 | 6H*<5/2> | (1910) | 100 | L582
92 | Uranium | Sn | [Kr].4d10.4f4 | 5I<4> | (1990) | 100 | L582
92 | Uranium | In | [Kr].4d10.4f3 | 4I*<9/2> | (2070) | 100 | L582
92 | Uranium | Cd | [Kr].4d10.4f2 | 3H<4> | (2140) | 110 | L582
92 | Uranium | Ag | [Kr].4d10.4f | 2F*<5/2> | (2220) | 110 | L582
92 | Uranium | Pd | [Kr].4d10 | 1S0 | (2578) | 4 | L8672c99
92 | Uranium | Rh | [Kr].4d9 | 2D<5/2> | (2646) | 4 | L8672c99
92 | Uranium | Ru | [Kr].4d8 | 3F<4> | (2718) | 4 | L8672c99
92 | Uranium | Tc | [Kr].4d7 | 4F<9/2> | (2794) | 4 | L8672c99
92 | Uranium | Mo | [Kr].4d6 | 5D<4> | (2867) | 4 | L8672c99
92 | Uranium | Nb | [Kr].4d5 | <5/2> | (2938) | 4 | L8672c99
92 | Uranium | Zr | [Kr].4d4 | 5D0 | (3073) | 4 | L8672c99
92 | Uranium | Y | [Kr].4d3 | 4F<3/2> | (3147) | 5 | L8672c99
92 | Uranium | Sr | [Kr].4d2 | 3F<2> | (3228) | 5 | L8672c99
92 | Uranium | Rb | [Kr].4d | 2D<3/2> | (3301) | 5 | L8672c99
92 | Uranium | Kr | [Ar].3d10.4s2.4p6 | 1S0 | (3602) | 5 | L8672c99
92 | Uranium | Br | [Ar].3d10.4s2.4p5 | 2P*<3/2> | (3675) | 6 | L8672c99
92 | Uranium | Se | [Ar].3d10.4s2.4p4 | 3P<2> | (3753) | 6 | L8672c99
92 | Uranium | As | [Ar].3d10.4s2.4p3 | *<3/2> | (3827) | 7 | L8672c99
92 | Uranium | Ge | [Ar].3d10.4s2.4p2 | 3P0 | (4214) | 10 | L8672c99
92 | Uranium | Ga | [Ar].3d10.4s2.4p | 2P*<1/2> | (4299) | 12 | L8672c99
92 | Uranium | Zn | [Ar].3d10.4s2 | 1S0 | (4513) | 15 | L8672c99
92 | Uranium | Cu | [Ar].3d10.4s | 2S<1/2> | [4598] | 5 | L10278
92 | Uranium | Ni | [Ar].3d10 | 1S0 | (7393) | 24 | L8672c99
92 | Uranium | Co | [Ar].3d9 | 2D<5/2> | (7550) | 30 | L8672c99
92 | Uranium | Fe | [Ar].3d8 | 3F<4> | (7730) | 40 | L8672c99
92 | Uranium | Mn | [Ar].3d7 | 4F<9/2> | (7910) | 40 | L8672c99
92 | Uranium | Cr | [Ar].3d6 | <4> | (8090) | 50 | L8672c99
92 | Uranium | V | [Ar].3d5 | <5/2> | (8260) | 50 | L8672c99
92 | Uranium | Ti | [Ar].3d4 | 5D0 | (8650) | 60 | L8672c99
92 | Uranium | Sc | [Ar].3d3 | 4F<3/2> | (8830) | 60 | L8672c99
92 | Uranium | Ca | [Ar].3d2 | 3F<2> | (9030) | 70 | L8672c99
92 | Uranium | K | [Ar].3d | 2D<3/2> | (9210) | 90 | L8672c99
92 | Uranium | Ar | [Ne].3s2.3p6 | 1S0 | (9720) | 90 | L8672c99
92 | Uranium | Cl | [Ne].3s2.3p5 | 2P*<3/2> | (9870) | 100 | L8672c99
92 | Uranium | S | [Ne].3s2.3p4 | 3P<2> | (10040) | 110 | L8672c99
92 | Uranium | P | [Ne].3s2.3p3 | 2P*<3/2> | (10200) | 120 | L8672c99
92 | Uranium | Si | [Ne].3s2.3p2 | 3P0 | (11410) | 120 | L8672c99
92 | Uranium | Al | [Ne].3s2.3p | 2P*<1/2> | (11600) | 140 | L8672c99
92 | Uranium | Mg | [Ne].3s2 | 1S0 | (11990) | 150 | L8672c99
92 | Uranium | Na | [Ne].3s | 2S<1/2> | (12160) | 160 | L8672c99
92 | Uranium | Ne | 1s2.2s2.2p6 | 1S0 | (25260) | 170 | L8672c99
92 | Uranium | F | 1s2.2s2.2p5 | 2P*<3/2> | (25680) | 190 | L8672c99
92 | Uranium | O | 1s2.2s2.2p4 | 3P<2> | (26150) | 200 | L8672c99
92 | Uranium | N | 1s2.2s2.2p3 | (0,3/2)*<3/2> | (26590) | 220 | L8672c99
92 | Uranium | C | 1s2.2s2.2p2 | 3P0 | (31060) | 240 | L8672c99
92 | Uranium | B | 1s2.2s2.2p | 2P*<1/2> | (31640) | 250 | L8672c99
92 | Uranium | Be | 1s2.2s2 | 1S0 | (32400) | 300 | L8672c99
92 | Uranium | Li | 1s2.2s | 2S<1/2> | (32836.5) | 0.6 | L16264c99
92 | Uranium | He | 1s2 | 1S0 | (129569.9) | 0.7 | L21139
92 | Uranium | H | 1s | 2S<1/2> | (131816.2) | 0.5 | 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
[Hg] = 1s2.2s2.2p6.3s2.3p6.3d10.4s2.4p6.4d10.5s2.5p6.4f14.5d10.6s2
[Rn] = 1s2.2s2.2p6.3s2.3p6.3d10.4s2.4p6.4d10.5s2.5p6.4f14.5d10.6s2.6p6
If you did not find the data you need, please inform the ASD Team.
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