Answer to Question #21426 in Inorganic Chemistry for yash sapra

Question

define schottky defect

Answer 1

Schottky defects Point Schottky defects are mainly found in the close-packed crystal, where the formation of interstitial atoms is difficult or energetically unfavorable. Some atoms of the surface layer due to thermal motion can escape from the crystal surface. A vacancy in the freed node can then migrate to the crystal volume. The formation of Schottky defects decreases the density of the crystal, because its volume is growing at a constant weight, whereas the formation of Frenkel defects density remains unchanged, since the volume of the entire body does not change.