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What is Schottky Defect in a Solid? - Chemistry (Theory)

Question

What is Schottky defect in a solid?

Short Note

Solution

Schottky defect: It is a stoichiometric defect in which the equal number of cations and anions in the ionic crystal are missing from their lattice sites and electrical neutrality is maintained.

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States of Matters: Structure and Properties Solid State - Point Defects – F Centers

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Q 3.b.i Q 3.a.ii Q 3.b.ii

2012-2013 (March)

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2012-2013 (March) (with solutions)

Q 3.b.i | 1 mark

RELATED QUESTIONS

Examine the defective crystal given below and answer the question that follows:

A⁺	B^-	A⁺	B^-	A⁺
B^-		B^-	A⁺	B^-
A⁺	B^-	A⁺		A⁺
B^-	A⁺	B^-	A⁺	B^-

State if the above defect is stoichiometric or non-stoichiometric. How does this defect affect the density of the crystal? Also, write the term used for this type of defect.