What is sehottky defect?

What is Schottky defect? Is it a stoichiometric or non-stoichiometric defect? What type of ionic crystals are likely to show this type of defect? Does the presence of this defect in a crystal increase or decrease the density of the crystal? Explain.

What is schotsky defect? Find the packing efficiency of face centred cubic latice.

What is Schottky defect ? Find out the packing effciency in a simple cubic lattice ?

What is Frenkely defect?

What is Frenkel defect? What type of ionic solids are likely to develop this defect? Why does the presence of Frenkel defect in a crystal not affect the density of the crystal?

What is point defect? Give an example.

What is crystal defects? Why ZnO when heated becomes yellow?

What is the point defect due to the presence of foreign atom ? Explain with suitable example.

Schottky defect is-

What is mass defect? How is it related to energy?