In $\left[\mathrm{Cr}\left(\mathrm{NH}_{3}\right)_{6}\right]^{3+}$, the ligand is $\mathrm{NH}_{3}$ which is a monodentate ligand, meaning it can form one bond with the central metal atom. In $\left[\mathrm{Cr}(\mathrm{en})_{3}\right]^{3+}$, the ligand is
Show more…