Chapter 5, Problem 29RQ

Assign oxidation numbers to the atoms in the following: $\left(\text{a}\right){\text{ ClO}}_4^{-}\text{, }\left(\text{b}\right){\text{ Cl}}^{\text{-}}\text{,}\left(\text{c}\right){\text{ SF}}_{\text{6}}\text{, and}\left(\text{d}\right)\text{Au}{\left({\text{NO}}_{\text{3}}\right)}_{\text{3}}\text{.}$