NIST Atomic Spectra Database Levels Data
Fr I 123 Levels Found |
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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Data on Landé factors and level compositions are not available for this ion in ASD Some data for neutral and singly-charged ions are available in the Handbook of Basic Atomic Spectroscopic Data |
Primary data source | Query NIST Bibliographic Database for Fr I (new window) | |
Sansonetti 2007 | Data are available for 212Fr only. | Literature on Fr I Energy Levels |
Configuration | Term | J | Level (cm-1) |
Uncertainty (cm-1) |
Reference |
---|---|---|---|---|---|
7s | 2S | 1/2 | 0.000 | 0.002 | L12264 |
7p | 2P° | 1/2 | 12 237.409 | 0.002 | L6679 |
3/2 | 13 923.998 | 0.002 | L6679 | ||
6d | 2D | 3/2 | 16 229.87 | 0.03 | L11797 |
5/2 | 16 429.64 | 0.03 | L11797 | ||
8s | 2S | 1/2 | 19 739.98 | 0.03 | L11797 |
8p | 2P° | 1/2 | 23 112.960 | 0.005 | L6731 |
3/2 | 23 658.306 | 0.004 | L6731 | ||
7d | 2D | 3/2 | 24 244.03 | 0.03 | L11797 |
5/2 | 24 332.93 | 0.03 | L11797 | ||
9s | 2S | 1/2 | 25 671.00 | 0.04 | L11797 |
9p | 2P° | 1/2 | 27 118.21 | 0.05 | L11797 |
3/2 | 27 366.20 | 0.05 | L11797 | ||
8d | 2D | 3/2 | 27 600.657 | 0.007 | L10714 |
5/2 | 27 645.373 | 0.007 | L10714 | ||
10s | 2S | 1/2 | 28 310.617 | 0.006 | L10714 |
10p | 2P° | 1/2 | 29 064.18 | 0.05 | L11797 |
3/2 | 29 198.09 | 0.05 | L11797 | ||
9d | 2D | 3/2 | 29 316.497 | 0.007 | L10714 |
5/2 | 29 341.817 | 0.007 | L10714 | ||
11s | 2S | 1/2 | 29 718.909 | 0.006 | L10714 |
11p | 2P° | 1/2 | 30 161.07 | 0.05 | L11797 |
3/2 | 30 241.60 | 0.05 | L11797 | ||
10d | 2D | 3/2 | 30 309.962 | 0.006 | L10669 |
5/2 | 30 325.605 | 0.006 | L10669 | ||
12s | 2S | 1/2 | 30 559.504 | 0.006 | L10669 |
12p | 2P° | 1/2 | 30 840.98 | 0.05 | L11797 |
3/2 | 30 893.16 | 0.05 | L11797 | ||
11d | 2D | 3/2 | 30 936.325 | 0.006 | L10669 |
5/2 | 30 946.643 | 0.006 | L10669 | ||
13s | 2S | 1/2 | 31 101.539 | 0.006 | L10669 |
13p | 2P° | 1/2 | 31 291.72 | 0.05 | L11797 |
3/2 | 31 327.46 | 0.05 | L11797 | ||
12d | 2D | 3/2 | 31 356.506 | 0.006 | L10669 |
5/2 | 31 363.655 | 0.006 | L10669 | ||
14s | 2S | 1/2 | 31 471.465 | 0.006 | L10669 |
14p | 2P° | 1/2 | 31 605.95 | 0.05 | L11797 |
3/2 | 31 631.49 | 0.05 | L11797 | ||
13d | 2D | 3/2 | 31 652.000 | 0.006 | L10669 |
5/2 | 31 657.155 | 0.006 | L10669 | ||
15s | 2S | 1/2 | 31 735.182 | 0.006 | L10669 |
15p | 2P° | 1/2 | 31 833.76 | 0.05 | L11797 |
3/2 | 31 852.65 | 0.05 | L11797 | ||
14d | 2D | 3/2 | 31 867.682 | 0.006 | L10669 |
5/2 | 31 871.514 | 0.006 | L10669 | ||
16s | 2S | 1/2 | 31 929.789 | 0.006 | L10669 |
16p | 2P° | 1/2 | 32 004.20 | 0.05 | L11797 |
3/2 | 32 018.55 | 0.05 | L11797 | ||
15d | 2D | 3/2 | 32 029.909 | 0.006 | L10669 |
5/2 | 32 032.821 | 0.006 | L10669 | ||
17s | 2S | 1/2 | 32 077.492 | 0.006 | L10669 |
17p | 2P° | 1/2 | 32 135.03 | 0.05 | L11797 |
3/2 | 32 146.20 | 0.05 | L11797 | ||
16d | 2D | 3/2 | 32 154.979 | 0.006 | L10669 |
5/2 | 32 157.274 | 0.006 | L10669 | ||
18s | 2S | 1/2 | 32 192.251 | 0.006 | L10669 |
18p | 2P° | 1/2 | 32 237.65 | 0.05 | L11797 |
3/2 | 32 246.51 | 0.05 | L11797 | ||
17d | 2D | 3/2 | 32 253.449 | 0.006 | L10669 |
5/2 | 32 255.275 | 0.006 | L10669 | ||
19s | 2S | 1/2 | 32 283.180 | 0.006 | L10669 |
19p | 2P° | 1/2 | 32 319.63 | 0.05 | L11797 |
3/2 | 32 326.77 | 0.05 | L11797 | ||
18d | 2D | 3/2 | 32 332.354 | 0.006 | L10669 |
5/2 | 32 333.827 | 0.006 | L10669 | ||
20s | 2S | 1/2 | 32 356.444 | 0.006 | L10669 |
20p | 2P° | 1/2 | 32 386.15 | 0.05 | L11797 |
3/2 | 32 391.99 | 0.05 | L11797 | ||
19d | 2D | 3/2 | 32 396.552 | 0.006 | L10669 |
5/2 | 32 397.761 | 0.006 | L10669 | ||
21s | 2S | 1/2 | 32 416.340 | 0.006 | L10669 |
22d | 2D | 5/2 | 32 431.57 | 0.03 | L11797 |
3/2 | 32 530.86 | 0.03 | L11797 | ||
21p | 2P° | 1/2 | 32 440.87 | 0.05 | L11797 |
3/2 | 32 445.71 | 0.05 | L11797 | ||
20d | 2D | 3/2 | 32 449.483 | 0.006 | L10669 |
5/2 | 32 450.488 | 0.006 | L10669 | ||
22s | 2S | 1/2 | 32 465.937 | 0.006 | L10669 |
22p | 2P° | 1/2 | 32 486.43 | 0.05 | L11797 |
3/2 | 32 490.48 | 0.05 | L11797 | ||
21d | 2D | 3/2 | 32 493.64 | 0.03 | L11797 |
5/2 | 32 494.48 | 0.03 | L11797 | ||
23s | 2S | 1/2 | 32 507.47 | 0.03 | L11797 |
23p | 2P° | 1/2 | 32 524.76 | 0.05 | L11797 |
3/2 | 32 528.19 | 0.05 | L11797 | ||
24s | 2S | 1/2 | 32 542.59 | 0.03 | L11797 |
24p | 2P° | 1/2 | 32 557.32 | 0.05 | L11797 |
3/2 | 32 560.25 | 0.05 | L11797 | ||
23d | 2D | 3/2 | 32 562.52 | 0.03 | L11797 |
5/2 | 32 563.13 | 0.03 | L11797 | ||
25s | 2S | 1/2 | 32 572.56 | 0.03 | L11797 |
25p | 2P° | 1/2 | 32 585.20 | 0.05 | L11797 |
3/2 | 32 587.72 | 0.05 | L11797 | ||
24d | 2D | 3/2 | 32 589.68 | 0.03 | L11797 |
5/2 | 32 590.20 | 0.03 | L11797 | ||
26s | 2S | 1/2 | 32 598.34 | 0.03 | L11797 |
26p | 2P° | 1/2 | 32 609.27 | 0.05 | L11797 |
3/2 | 32 611.45 | 0.05 | L11797 | ||
25d | 2D | 3/2 | 32 613.15 | 0.03 | L11797 |
5/2 | 32 613.60 | 0.03 | L11797 | ||
27s | 2S | 1/2 | 32 620.67 | 0.03 | L11797 |
27p | 2P° | 1/2 | 32 630.19 | 0.05 | L11797 |
3/2 | 32 632.09 | 0.05 | L11797 | ||
26d | 2D | 3/2 | 32 633.57 | 0.03 | L11797 |
5/2 | 32 633.97 | 0.03 | L11797 | ||
28s | 2S | 1/2 | 32 640.14 | 0.03 | L11797 |
28p | 2P° | 1/2 | 32 648.48 | 0.05 | L11797 |
3/2 | 32 650.15 | 0.05 | L11797 | ||
27d | 2D | 3/2 | 32 651.44 | 0.03 | L11797 |
5/2 | 32 651.79 | 0.03 | L11797 | ||
29s | 2S | 1/2 | 32 657.22 | 0.03 | L11797 |
29p | 2P° | 1/2 | 32 664.57 | 0.05 | L11797 |
3/2 | 32 666.04 | 0.05 | L11797 | ||
28d | 2D | 3/2 | 32 667.18 | 0.03 | L11797 |
5/2 | 32 667.49 | 0.03 | L11797 | ||
30s | 2S | 1/2 | 32 672.29 | 0.03 | L11797 |
30p | 2P° | 1/2 | 32 678.80 | 0.05 | L11797 |
3/2 | 32 680.10 | 0.05 | L11797 | ||
29d | 2D | 3/2 | 32 681.11 | 0.03 | L11797 |
5/2 | 32 681.39 | 0.03 | L11797 | ||
30d | 2D | 3/2 | 32 693.50 | 0.03 | L11797 |
5/2 | 32 693.75 | 0.03 | L11797 | ||
Fr II (6p6 1S0) | Limit | --- | 32 848.872 | 0.009 | L10714 |
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