Deduce the structure of :

Deduce the structure of :
(a) Br${{F}{5}}$ (b) P${{F}{5}}$
on the basis of VSEPR theory. .
(B) Explain why the bond order of ${{N}{2}}$ is greater than ${{N}{2}}^{+}$ but die bond order of ${{O}{2}}$ is less than that of ${{O}{2}}^{+}$