If the following all crystallize in the same type of structure, which has the lowest lattice energy?
A) LiCl
B) NaI
C) NaCl
D) KCl
E) KI

Question

Quizplus · Accepted Answer

Lattice energy decreases as the size of the ions increases because larger ions have a weaker attraction for each other. Among the given options, KI has the largest ions (both K+ and I- are larger than the other ions listed), leading to the lowest lattice energy.

If the Following All Crystallize in the Same Type of Structure