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Answer

A Schottky defect is a type of point defect in a crystal lattice named after Walter H. Schottky. In non-ionic crystals it means a lattice vacancy defect. In ionic crystals, the defect forms when oppositely charged ions leave their lattice sites, creating vacancies. Schottky defect arise when equal number of cations and anions are missing from the lattice. It is a common defect in ionic compounds of high coordination number* where both cations and anions are of the same size. Due to this density of crystal decreases and begins to conduct electricity to a smaller extent.   

Answer

A Schottky defect is a type of point defect in a crystal lattice named after Walter H. Schottky. In non-ionic crystals it means a lattice vacancy defect. In ionic crystals, the defect forms when oppositely charged ions leave their lattice sites, creating vacancies.

Answer

This defect is named after its discoverer Schottky.In this phenomenon some of the atoms or ions are missing their crystal lattice , the unoccupied lattice site is called holes or lattice vacancies .In this defect equal number of positive and negative ions are missing,so crystal is electrically neutral.This defect is found in strongly ionic compounds having higher coordination number and ions (cations and anions of same size). For example : NaCl,KCl,KBr and CsCl show this defect.

Answer

Schottky defect is defect in which the constituent particles are missing from their normal lattice point and frenkle defects are those in which constituent particles occupies interstitial sites(comes in centre or voids) from their lattice point.

Answer

Answer

A Schottky defect is a type of point defect in a crystal lattice named after Walter H. Schottky. In non-ionic crystals it means a lattice vacancy defect. In ionic crystals, the defect forms when oppositely charged ions leave their lattice sites, creating vacancies.

Answer

Schottky defect is basically a vacancy defect shown by ionic solids. In this defect, an equal number of cations and anions are missing to maintain electrical neutrality. It decreases the density of a substance. A significant number of Schottky defects is present in ionic solids. For example, in NaCl, there are approximately 106Schottky pairs per cm3at room temperature. Ionic substances containing similar-sized cations and anions show this type of defect. For example: NaCl, KCl, CsCl, AgBr, etc.