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Schottky defect is observed in crystals when __________.
(i) some cations move from their lattice site to interstitial sites.
(ii) the equal number of cations and anions are missing from the lattice.
(iii) some lattice sites are occupied by electrons.
(iv) some impurity is present in the lattice.
Answers (1)
The answer is the option (ii) the equal number of cations and anions are missing from the lattice.
Schottky defect is when a crystal has equal number of cations and anions missing from their normal lattice site by creating vacancies or holes. In this case, the electrical neutrality is maintained.
View full answer
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