1) Draw representations of both ionic solids in each set that show the relative differences in the sizes of the four ions, the ratio of cations to anions, and the charge on

each ion; identify which ionic solid will have the higher melting temperature; and justify

your answer. (Formula units that contain two ions must be drawn as networks consisting

of twelve ions in total. Formula units that contain more than two ions can be represented

as a single formula unit.)

NaCl or KBT

NaCl or MgS

BeF2 or LiF

CaO or CaCl2

MgO or Al2O3