Molecular nature of matter

The common definition of matter is anything that has mass and volume . For example, a car would be said to be made of matter, as it occupies space, and has mass.

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The Solids, Liquids and Gases in terms of molecular structure
Basis of Difference Solids Liquids Gases
Inter Atomic Distance means distance between molecules Molecules are very tightly packed. Inter atomic distance is minimum Molecules are not so tightly packed. Inter atomic distance is more as compared to solids Molecules are loosely packed .Free to move. Inter atomic distance is maximum.
Mean Free Path is the average distance a molecule can travel without colliding. No mean free path. Less mean free path. There is mean free path followed by the molecules.