Two p-block elements X and Y form fluorides of the type EF_3. The fluoride compound XF_3 is a Lewis acid and YF_3 is a Lewis base. The hybridizations…

Two p-block elements X and Y form fluorides of the type $\displaystyle \mathrm{EF}_3$. The fluoride compound $\displaystyle \mathrm{XF}_3$ is a Lewis acid and $\displaystyle \mathrm{YF}_3$ is a Lewis base. The hybridizations of the central atoms of $\displaystyle \mathrm{XF}_3$ and $\displaystyle \mathrm{YF}_3$ respectively are