Russell-Saunders terms from configurations

We are now in position to derive the electronic states arising from a given electronic configuration. These states have many names spectroscopic terms (or states), term symbols, and Russell-Saunders terms, in honor of spectroscopists H. N. Russell and F. A. Saunders. Hence, the scheme we use to derive these states is called Russell-Saunders coupling. It is also simply referred to as L-S coupling. 

Nickel(II) is a 3d ion. From this configuration the Russell-Saunders terms G,... 

One of the excited configurations for Zn " " is 3d 4p. Derive all the Russell-Saunders terms arising from this configuration. Can you say anything about which term has the... 

Table 7.6 Crystal field splitting of Russell-Saunders terms arising from d" configurations in an octahedral crystal field. The spin multiplicity, not included in this tabie, is the same for the crystal field terms as for the parent Russell-Saunders term...

This completes our discussion of the excited states of f electron systems. For completeness, however, Table 11.8 gives a more complete list of the Russell-Saunders terms arising from all f" configurations. It does not include the effects of spin-orbit coupling, which have to be worked out for each case individually. The reader may find it a helpful exercise to select a configuration from Table 11.8 and use it to construct a table similar to Table 11.7. 

To derive the term type (species) from the electronic configuration, Russell-Saunders coupling is assumed as defined eailier,... 

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