defects in crystalline solids

Solids with a definite geometric pattern. Examples: Iron, copper, silver, sulphur etc. are some elements which form crystalline solids. Potassium chloride, sodium nitrate etc are some of the compounds, which are crystalline..

The substances whose constituents are arranged in definite orderly arrangements are called crystalline solids. Many naturally occurring solid substances occur in the crystalline form. Some common examples of crystalline solids are sodium ..

Crystalline substances have a definite rigid shape. The shape and size of crystals (even of the same materials) differs depending upon the conditions under which they are grown. Crystals of a given substance are bound by plane surfaces called faces. The angle between any two faces i..

Crystalline and Amorphous Solids - Solids have definite shape and volume because the average distance between the molecules or atoms remain constant and do not change with time. The arrangement of molecules inside a solid differ from one to another. This resu..

Crystalline solids can be further classified depending on the nature of the bonding as: Ionic Molecular Covalent Metall..

Solids have definite shape and volume because the average distance between the molecules or atoms remain constant and do not change with time. The arrangement of molecules inside a solid differ from one to anothe..

Types of Solids Constituent Particles Nature of forces Examples Ionic Positive and negative ions Strong electrostatic forces of attraction KCl, BaSO 4 KNO 3 , LF Molecular Molecules (I) Vander Waal’s forces (ii) Dipole interaction (iii) Hydrog..

In case of ionic solids, the impurities are introduced by adding impurity of ions. If the impurity ions are in a different oxidation state from that of the host ions, vacancies are created. For e.g., If molten NaCl, containing a little of SrCl 2 as impurity is allowed to cool, in the cr..

If an ion is missing from its lattice site (causing a vacancy or a hole there) and it occupies the interstitial site so that electrical neutrality as well as stoichiometry of the compound are maintained. This type of defect is called Frenkel defect. Since the size of cations ar..