Question

Give all point of defects in solids . #12chemistry​

Answer 1

Answer:

Point defect:-When the deviation or irregularities exists from ideal arrangement around a point or an atom in a crystalline substance the defect is called the point defect. Line defect:- When the deviation from the ideal arrangement exists in the entire row of lattice points the defect is called as line defect.

Point defects involve a single atom or small cluster of atoms and are, in turn, subdivided into two types: 'vacancies', where an atom (or in an ionic substance an atom pair, to conserve charge balance) is missing, and 'interstitials', where the extra atom is situated in a normally unoccupied structural site.In a crystalline solid, when the ideal arrangement of solids is distorted around a point/ atom it is called a point defect. Defects or Imperfections in crystalline solid can be divided into four groups namely line defects, point defects, volume defects and surface defects.