# What is the formal charge on the central atom in POCl_3, XeO_4, ClO_4^(-), and PO_4^(3-)?

In each given species, the formal charge on the central atom is $\text{ZERO}$.
Both pockle3 and the xenon compound are neutral. For $C l {O}_{4}^{-}$ and $P {O}_{4}^{3 -}$, the charges lie on the most electronegative atom, that is oxygen.