A coupled pair of vacancies, a cation and an anion, that maintains the electrical neutrality of an ionic solid is called a(n) _____.

Question

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A coupled pair of vacancies, a cation and an anion, that maintains the electrical neutrality of an ionic solid is called a Schottky defect. Choice B is a type of crystal defect involving a misalignment of atoms along a line within the crystal structure. Choice C is a crystal defect involving the absence of an ion from a lattice site. Choice D is another name for an edge dislocation. Choice E is a crystal defect involving an ion that occupies an interstitial site rather than a lattice site.

A Coupled Pair of Vacancies, a Cation and an Anion