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NIST Atomic Spectra Database
Ionization Energies Data

Au (all spectra)
79 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) 
  74 409.11         
  162 950            
  (242 000)           
  (363 000)           
  (484 000)           
  (597 000)           
  (758 000)           
  (903 000)           
  (1 049 000)           
  (1 202 000)           
  [1 357 000]           
  [2 000 000]           
  (2 216 000)           
  (2 410 000)           
  (2 610 000)           
  (2 940 000)           
  (3 160 000)           
  (3 490 000)           
  (3 930 000)           
  (4 170 000)           
  (4 400 000)           
  (4 840 000)           
  (5 277 000)           
  (5 720 000)           
  (6 160 000)           
  (6 600 000)           
  (7 040 000)           
  (7 510 000)           
  (7 950 000)           
  (8 400 000)           
  (8 850 000)           
  (9 290 000)           
  (9 740 000)           
  (11 897 000)           
  (12 316 000)           
  (12 776 000)           
  (13 260 000)           
  (13 728 000)           
  (14 179 000)           
  (14 881 000)           
  (15 357 000)           
  (15 865 000)           
  (16 341 000)           
  (18 236 000)           
  (18 712 000)           
  (19 220 000)           
  (19 704 000)           
  (21 293 000)           
  (21 841 000)           
  (23 148 000)           
  [23 721 000]           
  39 423 000            
  (40 433 000)           
  (41 586 000)           
  (42 804 000)           
  (43 973 000)           
  (45 119 000)           
  (47 151 000)           
  (48 345 000)           
  (49 651 000)           
  (50 853 000)           
  (54 233 000)           
  (55 281 000)           
  (56 435 000)           
  (57 507 000)           
  (62 556 000)           
  (63 798 000)           
  (66 218 000)           
  (67 396 000)           
  (145 519 000)           
  (148 382 000)           
  (151 560 000)           
  (154 487 000)           
  (173 183 000)           
  (176 837 000)           
  (181 459 000)           
  (184 443 800)           
  (738 124 600)           
  (752 149 200)           
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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