See explanation below.
Work Step by Step
A) BaS or CsCl Cs+ has less charge than the Ba and Cl- has less of a charge than S2-. Therefore, electrons will transfer into BaS but only 1 in CsCl. B) LiCl or CsCl Li is smaller than Cs. The distance between the opposite charge particles is smaller in the LiCl compound than the CsCl compound.