What is is solid state

As we look around, most of things we see are solid substances rather than liquids and gases.

 The solids are the substances which have definite shape.

In terms of kinetic molecular model, solids have regular order of their constituent particles (atoms, molecules or ions). These particles are held together by fairly strong forces, therefore, they are present at fixed positions. The properties of the solids not only depend upon the nature of the constituents but also on their arrangements and the types of forces which hold the constituent particles together in a tightly packed arrangement.

The solids are rigid and maintain their own shape when subjected to outside force. On the other hand, liquids and gases change their shapes in response to outside forces. Therefore, liquids and gases are called fluids because of their ability to flow. The fluidity of liquids and gases is due to the fact that their constituent particles are free to move about. On the other hand, the rigidity of the solids is because their constituent particles have fixed positions

and can only oscillate about their mean positions.