Question 1

Which of the above pictures are more likely to represent covalent compounds?
◦ pictures (b) and (d)
◦ pictures (a) and (d)
◦ pictures (a) and (b)
◦ pictures (b) and (c)
Question 2
The following pictures represent alkali halide salts.

Which salt has the highest lattice energy?
◦ picture (a)
◦ picture (b)
◦ picture (c)
◦ picture (d)