NIST Physical Measurement Laboratory Handbook of Basic Atomic Spectroscopic Data

[skip navigation] National Institute of Standards and Technology NIST Physical Measurement Laboratory Francium (Fr) 

Homepage - IntroductionFinding listSelect element by name.Select element by atomic number.Select element from periodic tableFrancium Atomic DataFrancium Strong LinesFrancium Neutral Atom Persistent Lines Francium Neutral Atom Energy LevelsFrancium Singly Ionized Persistent LinesFrancium Singly Ionized Energy LevelsFrancium References
Switch to Formatted Version

Persistent Lines of Neutral Francium ( Fr I )

Int.    Wavelength   Aki        Energy          Configuration   Term    J     Line     Aki
           (Å)       (108s-1)   Levels (cm-1)                                 Ref.     Ref.

         4225.655                    0.000      7s              2S      1/2   ABDJ90   
                                 23658.306      8p              2P      3/2
 
         4325.361                    0.000      7s              2S      1/2   ABDJ90   
                                 23112.960      8p              2P°     1/2
 
         7179.866                    0.000      7s              2S      1/2   ABDJ90   
                                 13923.998      7p              2P°     3/2
 
         8169.418                    0.000      7s              2S      1/2   ABDJ90   
                                 12237.409      7p              2P°     1/2

Homepage - IntroductionFinding listSelect element by name.Select element by atomic number.Select element from periodic tableFrancium Atomic DataFrancium Strong LinesFrancium Neutral Atom Persistent Lines Francium Neutral Atom Energy LevelsFrancium Singly Ionized Persistent LinesFrancium Singly Ionized Energy LevelsFrancium References
Switch to Formatted Version