Energetics of Ionic Bond Formation: Solution

Question:

Which substance would you expect to have the greatest lattice energy: AgCl, CuO, CrN

Solution:

Answer: E1 = κ(Q1Q2)/d
Charge on the cations/anions of each compound is the main parameter that will determine the greatest lattice energy.
CrN (has Cr3+ and N3−), hence greatest lattice energy.
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