Chapter 21, Problem 75RQ

Bonding in Metal Complexes

In which complex do we expect to find the larger A?

$\begin{array}{l}\left(\text{a}\right){\left[\text{Cr}\left(\text{H2O}\right)\text{6}\right]}^{\text{2+}}\text{or |Cr}{\left({\text{H}}_{\text{2}}\text{O}\right)}_{\text{6}}{\text{]}}^{\text{3+}}\hfill \\ \left(\text{b}\right){\left[\text{Cr}{\left(\text{en}\right)}_3\right]}^{\text{3+}}\text{or }{\left[{\text{CrCl}}_{\text{6}}\right]}^{\text{3-}}\hfill \end{array}$