Explain the difference between Vacancy defect and schottky defect.
Answers
Schottky defect occurs in those ionic crystals where difference in size between cation and anion is small. ... In Schottky defect, both cation and anion leave the solid crystal. In Frenkel defect, only the smaller ion (cation) leaves its original lattice site; whereas, the anion remains in original lattice sites.
Answer:
Explanation:
schottky defect:
1) It emerges when equivalent number of
cations and anions are absent
from the lacttice.
2. This kind of deformity is shown by
compounds where size of cation
furthermore, anion is practically same.
3. Thickness of the precious stone reductions.
4. It is seen in ionic solids having
high coordination number.
5. Eg. KCl, NaCl, CsCl, CsBr
Vacancy defect:
It arises when some of the cations
occupy interstitial sites leaving the
lattice vacant.
2. This is shown in compounds
having large difference between
size of cations and anions.
3. Density of the crystal does not
change.
4. It is observed in ionic solids having
low coordination number.
5. Eg. ZnS, AgCl, AgBr