Q- What type of stoichiometric defect is shown by:
(i) ZnS (ii) AgBr
Answer- (i) The ZnS shows Frenkel Defect
(ii) The AgBr shows Schottky Defect and Frenkel Defect
Frenkel Defect: Frenkel Defect is a kind of defect that occurs in crystalline in which the atoms are displaced from lattice position to interstitial site creating vacancy. This defect generally occurs in ionic solids with a large difference in the size of ions.
Schottky Defect: Schottky Defect is a kind of defect that occurs when the oppositely charged ions leave their lattice site and create vacancies in such a way that the electrical neutrality of the crystal should be maintained. This defect generally occurs in highly ionic compounds.
Students Also Ask (FAQs)
Which type of stoichiometric defect is shown by ZnS?
The ZnS shows Frenkel Defect. Frenkel Defect is a type of defect that mainly occurs in crystalline.
What type of stoichiometric defect is shown by ZnS and CsCl?
The ZnS shows Frenkel Defect and CsCl shows Schottky Defect. The Frenkel Defect is a type of defect that primarily occurs in crystalline. On the other hand, Schottky Defect occurs when the differently charged ions exit their lattice site.