Supplementary problems for molecular geometries:

For each of the following molecules or molecular ions, what is the steric number for the central atom (underlined), the name of the molecular geometry, and the "direction" of any distortion from ideal geometry. Which, if any, of the neutral molecules will be polar?

ICl₄^-

OF₂

BrO₃^-

CS₂

PCl₄⁺

XeF₅⁺