Question

When anion leave the normal lattice site and electron occupies interestial siter then defect is called schottkey defect?

Answer 1

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It is known that schottky defects arise due to missing of ions from their lattice point and frenkel defects arise when the missing ions
occupy the interstitial sites.

Answer 2

Answer:

Schottky defects occur due to the cation-anion pair's missing from the lattice sites.

Explanation:

A Schottky defect is a type of vacancy defect which is found in ionic solids. It is a stoichiometry defect (thermodynamic defect), which means that such defects do not change or distort the stoichiometry of the solid.

Schottky defect with example?

Some atoms or ions are missing from their normal lattice sites. Unoccupied lattice sites are called vacancies or holes.

For example, in the crystal lattice of NaCl, equal number of cations and anions are missing to maintain electrical neutrality.