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NIST Atomic Spectra Database
Ionization Energies Data

Lu (all spectra)
71 Data Rows Found 
Example of how to reference these results:
Kramida, A., Ralchenko, Yu., Reader, J., and NIST ASD Team (2024). NIST Atomic Spectra Database (ver. 5.12), [Online]. Available: https://physics.nist.gov/asd [2026, October 26]. National Institute of Standards and Technology, Gaithersburg, MD. DOI: https://doi.org/10.18434/T4W30F
BibTex Citation (new window)
 

 Ionization  Energy 
 (cm-1) 
  43 762.60         
  [113 970]           
  169 049            
  [364 960]           
  [538 700]           
  (794 000)           
  (946 000)           
  (1 099 000)           
  (1 286 000)           
  (1 490 000)           
  (1 653 000)           
  (1 920 000)           
  (2 230 000)           
  (2 460 000)           
  (2 642 000)           
  (2 910 000)           
  (3 220 000)           
  (3 530 000)           
  (3 840 000)           
  (4 170 000)           
  (4 480 000)           
  (4 800 000)           
  (5 120 000)           
  (5 430 000)           
  (5 750 000)           
  (7 590 000)           
  (7 945 000)           
  (8 324 000)           
  (8 719 000)           
  (9 114 000)           
  (9 501 000)           
  (10 017 000)           
  (10 421 000)           
  (10 848 000)           
  (11 251 000)           
  (12 832 000)           
  (13 236 000)           
  (13 679 000)           
  (14 091 000)           
  (15 123 000)           
  (15 591 000)           
  (16 671 000)           
  [17 143 200]           
  (28 955 000)           
  (29 891 000)           
  (30 875 000)           
  (31 940 000)           
  (32 956 000)           
  (33 964 000)           
  (35 513 000)           
  (36 553 000)           
  (37 690 000)           
  (38 739 000)           
  (41 683 000)           
  (42 602 000)           
  (43 618 000)           
  (44 562 000)           
  (47 885 000)           
  (48 958 000)           
  (51 023 000)           
  (52 039 000)           
  (114 757 000)           
  (117 289 000)           
  (120 096 000)           
  (122 685 000)           
  (134 945 000)           
  (138 066 000)           
  (142 010 000)           
  (144 599 500)           
  (583 323 300)           
  (595 272 200)           
Notes:
a Uncertainty of the listed value is unknown.

If you did not find the data you need, please inform the ASD Team.

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