Question

Define vacancy defect ???????

Answer 1

When some of the lattice are vacaned then the defect is called vacancy defect

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.