Which of the following characteristics accurately define a Frenkel defect occurring within an ionic — Solid State Chemistry Question

💡 Solution & Explanation

A Frenkel defect involves an ion (usually the smaller cation) leaving its normal lattice site and moving to an interstitial site. This is a dislocation of the ion. It does not change the mass or volume of the crystal, so density remains completely unchanged. It occurs mainly in crystals with a large size disparity (e.g., $AgI$, $ZnS$).