Difference between Schottky and frenkel defects ???
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schottky defect is due to absence of equal number of cations and anions from metal lattice.
in Frenkel defect,metal cations displace and occupy interstitial position and Electrons are present in their place in the lattice.
in Frenkel defect,metal cations displace and occupy interstitial position and Electrons are present in their place in the lattice.
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Answer:
Schottky Defect:
1. Equal number of cation and anions are missing from their normal crystal sites in a whole ratio.
2. It lowers the density of solid.
3. Ionic compounds having high C.N. and Comparable radii of cation and anion show this defect.
Frenkel Defect:
1. Some atoms or ions are displaced or dislocated from their sites.
2. No effect on density of solid.
3. Ionic compounds with low C.N. and a large difference in cationic and anionic radii show this defect
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