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NIST Atomic Spectra Database Levels Data

Ra II   37 Levels Found
Z = 88, Fr isoelectronic sequence 
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)
 
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 Ra II (new window)
 Dammalapati et al. 2016     Energy levels are given for the isotope 226Ra. Some of the levels given with two digits after the decimal point (7d5/2, 7f7/2, 11s, 10d, 11d3/2, 12d5/2) have uncertainties as large as 0.3 to 0.4 cm-1. In these cases, an extra digit is required to exactly reproduce the observed transition wavelengths. Literature on Ra II Energy Levels

 Configuration   Term   J   Level 
 (cm-1) 		  Uncertainty 
 (cm-1) 		  Reference 
           
7s   2S   1/2    0.000             L19486 
           
6d   2D   3/2    12 084.2721          0.0010    L19486 
     5/2    13 742.99            0.03      L19486 
           
7p   2P°   1/2    21 351.3259          0.0008    L19486 
     3/2    26 208.8538          0.0021    L19486 
           
8s   2S   1/2    43 405.05            0.05      L19486 
           
7d   2D   3/2    48 744.04            0.10      L19486 
     5/2    49 240.45            0.4       L19486 
           
5f   2F°   5/2    48 987.86            0.15      L19486 
     7/2    49 272.14            0.16      L19486 
           
8p   2P°   1/2    50 606.29            0.22      L19486 
     3/2    52 392.02            0.19      L19486 
           
9s   2S   1/2    59 165.3             0.3       L19486 
           
6f   2F°   5/2    59 517               5         L19486 
     7/2    59 814               4         L19486 
           
8d   2D   3/2    61 735.0             0.5       L19486 
     5/2    61 973.8             0.9       L19486 
           
9p   2P°   3/2    63 410.43            0.21      L19486 
           
5g   2G   7/2,9/2    64 150.49            0.15      L19486 
           
7f   2F°   5/2    66 521.85            0.24      L19486 
     7/2    66 691.18            0.4       L19486 
           
10s   2S   1/2    66 838.72            0.22      L19486 
           
9d   2D   3/2    68 264.07            0.21      L19486 
     5/2    68 394.87            0.23      L19486 
           
6g   2G   7/2,9/2    69 560.68            0.21      L19486 
           
11s   2S   1/2    71 172.88            0.3       L19486 
           
10d   2D   3/2    72 043.33            0.3       L19486 
     5/2    72 123.74            0.3       L19486 
           
7g   2G   7/2,9/2    72 824.21            0.20      L19486 
           
11d   2D   3/2    74 434.30            0.3       L19486 
     5/2    74 489               5         L19486 
           
8g   2G   7/2,9/2    74 941.76            0.23      L19486 
           
12d   2D   5/2    76 080.68            0.3       L19486 
           
9g   2G   7/2,9/2    76 392.92            0.21      L19486 
           
10g   2G   7/2,9/2    77 431.2             1.2       L19486 
           
11g   2G   7/2,9/2    78 195.1             2.0       L19486 
           
Ra III (6p6 1S0)   Limit   ---    81 842.5             0.5       L19486 
           

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