Structure of Ionic Solids

AP Chemistry· difficulty 3/5

Lattice energy of an ionic compound increases with

A
$Larger radii$
B
$Decreasing charges$
C
$Random$
D
$Smaller ionic radii and larger ionic charges$
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Explanation

Coulomb's law: U \propto q₁q₂/r. Smaller r and larger |q| \to stronger attraction \to larger (more negative) lattice energy.

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