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Define schottky defect with example

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Define schottky defect with example

Posted by Rishabh Chaurasia 6 years, 10 months ago

CBSE > Class 12 > Chemistry

2 answers

Suhani Rana? 6 years, 10 months ago

It is basically a vacancy defect in ionic solid in order to maintain the electrical neutrality the no of cation and anion missing are equal. Like simple vacancy defect schottky defect also decrease the density of substance. For eg in NaCl there are appex 10^16 schottky pairs per cm^3 at room temp in 1cm^3 there are about 10^22 ions. Thus there is one schottky defect is shown by ionic substance in which cation and anion sre of almost same size. And some other exsmples are kcl,AgBr

Mannavan J 6 years, 10 months ago

Cations and anions in equal number are missing from the crystal lattice giving rise to voids. E.g NaCl, CsCl.

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