Osmium ground state electronic configuration

What is the expected ground-state electron configuration for each of the following elements (a) tellurium (b) cesium (c) selenium (d) platinum (e) osmium (f) chromium. 

The electronic ground-state configuration of the free neutral atom of element 108 has been predicted to be 5f 6d 7s [75]. It is expected to belong to the group VIII elements and to exhibit chemical properties similar to osmium, e.g. a volatile tetraoxide [75]. As with element 107, a variety of oxidation states have been predicted to be stable, including the 8 -l- [77], the 4 -I- [99], and the 2 -I- [78]. The higher oxidation states would be expected to be stabilized by the formation of oxyanions [97]. Some of the predicted chemical properties of element 108 are given in Table 13.10. 

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