Solid and its types | amorphous solid and Crystalline solid | ch#4 | 11th class Chemistry

#crystallinesolidsandamorphoussolid #solid i this video lectures I have discussed about the difference between crystalline solids and amorphous solids. Types of Solids Solids can be classiied on the basis of the regular arrangements of constituent atoms, ions or molecules. There are two types of solids in this respect. (i) Crystalline Solids Those solids in which atoms, ions or molecules are arranged in a deinite three dimensional pattern are called crystalline solids This recurring regular geometrical pattern of structure extends three dimensionally. (ii) Amorphous Solids All solids are not crystalline .The word amorphous means shapeless. Amorphous substances are those whose constituent atoms, ions, or molecules do not possess a regular orderly arrangement. The best examples are glass, plastics, rubber, glue, etc. These substances have solid state properties and virtually complete maintenance of shape and volume. But they do not have an ordered crystalline state