Define matter?


Anything that has mass and occupies space is called matter. A matter is made up of tiny particles. These particles are invisible to the naked eye.

Characteristics of the matter

The following are the characteristics of the matter:

  • Particles have space between them
  • Particles are continuously moving
  • Particles attract each other

Classification of matter

Based on the intermolecular forces of attraction and spacings between the particles matter is broadly classified into three categories:

  • Solids

These are tightly packed because of strong intermolecular forces.

Example: Book

  • Liquids

The molecules in a liquid are closely packed due to weak intermolecular forces.

Example: Water

  • Gases

The intermolecular forces Present between them are negligible.

Example: Oxygen

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