Select the correct statement regarding ${\mathrm{XeO}}_4$ and ${\mathrm{IO}}_4^{-}$.

Both have different shapes.

Both are isoelectronic.

$\angle \mathrm{OXeO}$ and $\angle \mathrm{OIO}$ are different bond angles.

Both have equal number of p$\mathrm{\pi }$-d$\mathrm{\pi }$ bonds.