Question

What is Dalton's atomic theory??

Answer 1

Dear student,

According to Dalton’s atomic theory, all matter, whether an element, a compound, or a mixture is composed of small particles called atoms. The postulates of this theory may be stated as follows:

1. All matter is made up of very tiny particles. These particles are called atoms.

2. An atom cannot be divided further i.e., atoms are indivisible.

3. Atoms can neither be created nor destroyed in a chemical reaction.

4. All atoms of an element are identical in all respects, including the mass, chemical properties, etc.

5. Atoms of different elements have different masses and chemical properties.

6. Atoms of different elements combine in small whole-number ratios to form compounds.

7. In a given compound, the relative number and types of atoms are constant.

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