585 



TABLE 624.— SPECTROSCOPIC PROPERTIES OF SINGLY-IONIZED ATOMS 



(concluded) 



Period 



Ionized 

 atom 



55 Cs + 



56 Ba + 



57 La + 



58 Ce + 



59 Pr + 



60 Nd + 



61 Pm + 



62 Sm + 



63 Eu + 



64 Gd + 



65 Tb + 



66 Dy + 



67 Ho + 



68 Er + 



69 Tm + 



70 Yb + 



71 Lu + 



72 Hf + 



73 Ta + 



74 W + 

 75 + Re + 



76 Os + 



77 Ir + 



78 Pt + 



79 Au + 



80 Hg + 



81 Tl + 



82 Pb + 



83 Bi + 



84 Po + 



85 At + 



86 Rn + 



87 Fr + 



88 Ra + 



89 Ac + 



90 Th + 



91 Pa + 



92 U + 



93 Np + 



94 Pu + 



95 Am + 



96 Cm + 



97 Bk + 



98 Cf 



7s 1 



7s 1 

 6<P 7 s 1 



5f 7> 



J Soh 



l So 



4 F:u 



4J. 



2 



1,3 

 2,4 



4,6 



10.14 



3814.42 

 40i9.14 

 37J9.29 



References for series relations in atomic spectra: Meggers, W. F.. Journ. Opt. Soc. Amer., vol. 31, 

 p. 44, 1941; vol. 31. p. 606, 1941. Pauling, L., and Goudsmit, S., The structure of line spectra, 



McGraw-Hill Book Co., New York, 1930. White, H. E., Introduction to atomic spectra, McGraw- 



Hill Book Co., New York, 1934. Herzberg, G., Atomic spectra and atomic structure, Dover Publica- 



tions, New York, 1944. Condon, E. U., and Shortley, G. H., The theory of atomic spectra, Macmillan 



Co., New York, 1935. Bacher, R. F., and Goudsmit, S., Atomic energy states, McGraw-Hill Book 

 Co., New York. 1932. Moore, C. E., Atomic energy levels, Nat. Bur. Standards Circ. 467, vol. 1, 



1949; vol. 2, 1952. 



SMITHSONIAN PHYSICAL TABLES 



