Question

The presence of vacant lattice sites in a crystal​

Answer 1

In crystallography, a vacancy is a type of point defect in a crystal where an atom is missing from one of the lattice sites. Crystals inherently possess imperfections, sometimes referred to as crystalline defects. It is also known as a Schottky defect, although in ionic crystals the concepts are not identical.

Answer 2

Answer:

In crystallography, a vacancy is a type of point defect in a crystal where an atom is missing from one of the lattice sites. Crystals inherently possess imperfections, sometimes referred to as crystalline defects. It is also known as a Schottky defect, although in ionic crystals the concepts are not identical.