Question

On which defect density of a crystal decreases.

Answer 1

Explanation:

Schottky defects is a vacancy defect which lowers the density of the solid crystal. In this an equal number of cation and anion is missing from the interstitial site and this leads to the lowering of the density.

Answer 2

in vacancy defect or Schottky defect the density of the crystal decreases as one pair of anaion and cation are absent in the crystal