Do particles of a solid, liquid and gas have fixed shapes?

For defining States of Matter at molecular level it will be convenient to classify forces into two ; Intermolecular Forces and Intramolecular forces. read more

Particles of a solid Particles of liquid Particles of gas By seeing the above pictures, we may conclude that each particles, no matter whatever the state they are, have fixed shape(molecules/atoms have definite shape). read more

Solids have a fixed shape and occupy a fixed volume. Liquids, because they flow, can occupy whatever shape their container has, so they do not have a fixed shape. Because the particles in liquids are very close together (barely further apart than in solids) liquids do not easily compress, so their volume is fixed. read more