Atomic defect responsible for reduction of bulk density
Answers
Answer: -
Schottky Defect
Explanation: -
In the case of Schottky Defect in an ionic crystal, equal number of cations and anions are missing from their lattice points.
This type of defect is shown by highly ionic compounds which generally have High crystal coordination number and Same or very small difference in the sizes of cations and anions . A few examples of ionic compounds exhibiting Schottky defect are NaCl, KCl, KBr and CsCl.
As the number of ions in the lattice decreases as a result of the schottky defect, the mass decreases whereas the volume remains the same. Hence bulk density of the solid decreases.
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