Which ionic compound would be expected to have the highest lattice energy? A)AlH₃ B)Al₂S₃ C)AlCl₃ D)AlN

Question

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Lattice energy increases with the charge of the ions and decreases as the size of the ions increases. Aluminum nitride (AlN) has a higher lattice energy because it involves a 3+ cation (Al^3+) and a 3− anion (N^3−), leading to a stronger electrostatic attraction between ions compared to the other options which involve ions with lower charges.

Which Ionic Compound Would Be Expected to Have the Highest