Give any two differences between Frenkel and Schottky defects.

Explanation

`{:("S.No.","Schottky defect","Frenkel defect"),((i),"Density decreases","No change in density."),((ii),"Observed when cations and anions","Observed when cations and anions"),(,"have similar size.","differ in their size."),((iii),"Equal number of cations and anions","The smaller ion gets dislocated from"),(,"are missing from lattice points","its lattice point. "):}`