Schottky defect lowers the density of ionic crystals while Frenkel defect does not. Discuss.

Schottky defect lowers the density of ionic crystals while Frenkel defect does not. Why?

Schottky defect is-

Which point defect lowers the density of a crystal?

Due of Frenkel defect

Why does Schottky defect decrease the desity of a crystal ?

Which has Frenkel defect ?

Due to Frenkel defect, the density of ionic solids:

Frenkel defect does not change the density of the ionic crystal whereas, Schottky defect lowers the density of ionic crystal. Give a reason.

Schottky defect is likely to be found in