Question

Give 3 point different between Schottky defect and frenkel defects

Answer 1

Both Schottky defect or Frenkel defectcreate a vacant point in the lattice.

Furthermore, the Schottky defectcauses the lattice density to be decreased whereas the Frenkel defectdoes not have any effect on the density of the lattice.

This is the maindifference between Schottky defect and Frenkel defect

Answer 2

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