classification of solid statas

Classification of solids :

Solids are of two types

                   1) Crystalline solid                   2) Amorphous solid

1) Crystalline solid : A homogeneous solid in which the constituent particles like atoms, ions or mol

ecules are arranged in adefrnite repeating pattern through out the solid is called crystalline solid. e.g. NaCl, KN03, urea, sugar etc.

 2) Amorphous solid : A substance in which Igoo 'tuent particles are not arranged in a regular pattern

is called amorphous solid. Amorphous solids appear like solidsb tdo 0t have perfectly ordered crystalline structure.

e. g. glass, rubber, plastic etc.