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| NIST Atomic Spectra Database Ionization Energies Data
Am (all spectra) |
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 [2025, July 1]. National Institute of Standards and Technology, Gaithersburg, MD. DOI: https://doi.org/10.18434/T4W30F
BibTex Citation (new window)
|
| At. Num. | Ion Charge | El. name | Ionization Energy (eV) |
Uncertainty (eV) |
References |
|---|---|---|---|---|---|
| 95 | 0 | Americium | 5.97381 | 0.00025 | L15992 |
| 95 | +1 | Americium | [11.7] | 0.4 | L13741c99 |
| 95 | +2 | Americium | [21.7] | 0.4 | L13741c99 |
| 95 | +3 | Americium | [36.8] | 0.4 | L13741c99 |
| 95 | +4 | Americium | (50.0) | 1.9 | L8672c99 |
| 95 | +5 | Americium | (67.9) | 2.0 | L8672c99 |
| 95 | +6 | Americium | (95) | 5 | L582 |
| 95 | +7 | Americium | (110) | 6 | L582 |
| 95 | +8 | Americium | (125) | 6 | L582 |
| 95 | +9 | Americium | (141) | 7 | L582 |
| 95 | +10 | Americium | (163) | 8 | L582 |
| 95 | +11 | Americium | (184) | 9 | L582 |
| 95 | +12 | Americium | (206) | 10 | L582 |
| 95 | +13 | Americium | (225) | 3 | L8672c99 |
| 95 | +14 | Americium | (242) | 3 | L8672c99 |
| 95 | +15 | Americium | (284) | 3 | L8672c99 |
| 95 | +16 | Americium | (305) | 3 | L8672c99 |
| 95 | +17 | Americium | (424) | 3 | L8672c99 |
| 95 | +18 | Americium | (451) | 3 | L8672c99 |
| 95 | +19 | Americium | (481) | 4 | L8672c99 |
| 95 | +20 | Americium | (511) | 4 | L8672c99 |
| 95 | +21 | Americium | (541) | 4 | L8672c99 |
| 95 | +22 | Americium | (571) | 4 | L8672c99 |
| 95 | +23 | Americium | (616) | 4 | L8672c99 |
| 95 | +24 | Americium | (646) | 4 | L8672c99 |
| 95 | +25 | Americium | (680) | 4 | L8672c99 |
| 95 | +26 | Americium | (711) | 4 | L8672c99 |
| 95 | +27 | Americium | (870) | 40 | L582 |
| 95 | +28 | Americium | (900) | 50 | L582 |
| 95 | +29 | Americium | (940) | 50 | L582 |
| 95 | +30 | Americium | (980) | 50 | L582 |
| 95 | +31 | Americium | (1 090) | 50 | L582 |
| 95 | +32 | Americium | (1 130) | 60 | L582 |
| 95 | +33 | Americium | (1 240) | 60 | L582 |
| 95 | +34 | Americium | (1 280) | 60 | L582 |
| 95 | +35 | Americium | (1 410) | 70 | L582 |
| 95 | +36 | Americium | (1 490) | 70 | L582 |
| 95 | +37 | Americium | (1 570) | 80 | L582 |
| 95 | +38 | Americium | (1 650) | 90 | L582 |
| 95 | +39 | Americium | (1 730) | 90 | L582 |
| 95 | +40 | Americium | (1 820) | 90 | L582 |
| 95 | +41 | Americium | (1 900) | 90 | L582 |
| 95 | +42 | Americium | (1 980) | 100 | L582 |
| 95 | +43 | Americium | (2 070) | 100 | L582 |
| 95 | +44 | Americium | (2 160) | 110 | L582 |
| 95 | +45 | Americium | (2 240) | 110 | L582 |
| 95 | +46 | Americium | (2 320) | 110 | L582 |
| 95 | +47 | Americium | (2 410) | 120 | L582 |
| 95 | +48 | Americium | (2 480) | 120 | L582 |
| 95 | +49 | Americium | (2 874) | 4 | L8672c99 |
| 95 | +50 | Americium | (2 946) | 4 | L8672c99 |
| 95 | +51 | Americium | (3 021) | 4 | L8672c99 |
| 95 | +52 | Americium | (3 101) | 4 | L8672c99 |
| 95 | +53 | Americium | (3 178) | 5 | L8672c99 |
| 95 | +54 | Americium | (3 251) | 5 | L8672c99 |
| 95 | +55 | Americium | (3 402) | 5 | L8672c99 |
| 95 | +56 | Americium | (3 479) | 5 | L8672c99 |
| 95 | +57 | Americium | (3 563) | 6 | L8672c99 |
| 95 | +58 | Americium | (3 641) | 6 | L8672c99 |
| 95 | +59 | Americium | (3 956) | 7 | L8672c99 |
| 95 | +60 | Americium | (4 033) | 10 | L8672c99 |
| 95 | +61 | Americium | (4 115) | 12 | L8672c99 |
| 95 | +62 | Americium | (4 191) | 15 | L8672c99 |
| 95 | +63 | Americium | (4 642) | 19 | L8672c99 |
| 95 | +64 | Americium | (4 733) | 24 | L8672c99 |
| 95 | +65 | Americium | (4 960) | 30 | L8672c99 |
| 95 | +66 | Americium | (5 050) | 40 | L8672c99 |
| 95 | +67 | Americium | (8 040) | 40 | L8672c99 |
| 95 | +68 | Americium | (8 210) | 50 | L8672c99 |
| 95 | +69 | Americium | (8 390) | 50 | L8672c99 |
| 95 | +70 | Americium | (8 590) | 60 | L8672c99 |
| 95 | +71 | Americium | (8 770) | 60 | L8672c99 |
| 95 | +72 | Americium | (8 950) | 70 | L8672c99 |
| 95 | +73 | Americium | (9 380) | 90 | L8672c99 |
| 95 | +74 | Americium | (9 560) | 90 | L8672c99 |
| 95 | +75 | Americium | (9 770) | 100 | L8672c99 |
| 95 | +76 | Americium | (9 960) | 110 | L8672c99 |
| 95 | +77 | Americium | (10 490) | 120 | L8672c99 |
| 95 | +78 | Americium | (10 650) | 120 | L8672c99 |
| 95 | +79 | Americium | (10 830) | 140 | L8672c99 |
| 95 | +80 | Americium | (11 000) | 150 | L8672c99 |
| 95 | +81 | Americium | (12 400) | 160 | L8672c99 |
| 95 | +82 | Americium | (12 600) | 170 | L8672c99 |
| 95 | +83 | Americium | (13 000) | 190 | L8672c99 |
| 95 | +84 | Americium | (13 190) | 200 | L8672c99 |
| 95 | +85 | Americium | (27 110) | 220 | L8672c99 |
| 95 | +86 | Americium | (27 550) | 240 | L8672c99 |
| 95 | +87 | Americium | (28 040) | 250 | L8672c99 |
| 95 | +88 | Americium | (28 500) | 300 | L8672c99 |
| 95 | +89 | Americium | (33 700) | 300 | L8672c99 |
| 95 | +90 | Americium | (34 300) | 300 | L8672c99 |
| 95 | +91 | Americium | (35 100) | 300 | L8672c99 |
| 95 | +92 | Americium | (35 549.4) | 0.7 | L16264c99 |
| 95 | +93 | Americium | (139 769.5) | 0.7 | L12128 |
| 95 | +94 | Americium | (142 153.5) | 0.9 | L19200 |
If you did not find the data you need, please inform the ASD Team.
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