1.

Write any two differences between Frenkel and Schottky defects.

Answer»
Schottky defectFrenkel defect
1) It is caused by missing of equal number of cations and anions from lattice points to maintain electrical neutrality.1) The smaller ion (Cation) is dislocated from its normal site to an interstitial site.
2) Density decreases2) Density is not changed
3) It is shown by ionic substances in which the cation and anion are of almost similar sizes.3) It is shown by ionic substances in which there is a large difference in the size of ions.


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