QuestionSolid state / point defects
Schottky defect is observed in a crystal lattice when :
- (a) A pair of oppositely charged ions are missing from their lattice positions in a crystal
- (b) An ion leaves the lattice position and occupies the interstitial position
- (c) The lattice position of an anion is occupied by an electron
- (d) Some of the similar charged ions of other elements are present in interstices
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