Defect chemistry could be the study of position defects in imperfect crystals. These consist of vacancies, interstitial atoms or ions, trace components, electrons, or holes or another deviation from the structure of a perfect crystal. Even Totally pure crystals contain position defects at any temperature over absolute zero. Sri Lanka’s https://socialmediatotal.com/story3401939/considerations-to-know-about-sri-lankan-pukhraj