Which of the following ionic compounds has the largest lattice energy; that is, which has the lattice energy most favorable to a stable lattice?
A) LiF
B) LiI
C) CsF
D) MgO
E) CsI

Question

Quizplus · Accepted Answer

The lattice energy of an ionic compound depends on the charges of the ions and their sizes. In general, the larger the charges and the smaller the ion sizes, the greater the lattice energy. Among the options given, MgO has the highest charges (+2 for Mg and -2 for O) and the smallest ion sizes, making it the compound with the highest lattice energy.

Which of the Following Ionic Compounds Has the Largest Lattice