Particulate Nature of Matter

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  1. Matter is anything that occupies space and has mass.
  2. The particle theory of matter states that matter is made up of a large number of tiny and discrete particles.
Particle Theory of Matter:  Matter is made up of a large number of tiny and discrete particles.

Types of Particles

  1. Particles can exist as atoms, molecules or ions.
  2. Atom is the smallest, indivisible particle of an element.
  3. Molecules are particles that made up of two or more atoms.
  4. Ions are particles that carry charge.
    1. Positive ion – Cation
    2. Negative ion – Anion