Question

What type of stoichiometric defect is shown by agbr and agi?

Answer 1

AgBr shows both frenkel and schoty defect,while AgI shows only frenkel defect

Answer 2

Heyaaa mate,

● Answer -
a) AgBr shows both Frenkel defect and Schottky defect.
b) AgI shows only Frenkel defect.

● Frenkel Defect -
- Frenkel defect is a defect in the lattice crystal where an atom or ion occupies a normally vacant site other than its own.
- For example, AgBr, ZnS, AgI.


● Schottky defect -
- Schottky defect is a defect in crystal lattice when oppositely charged atoms leave their corresponding lattice sites and create a pair of vacancies.
- For example, NaCl, CaCl, AgBr.


Hope this helps you...