Question

Give any four postulates of Dalton's atomic theory

Answer 1

1. Matter is made up of indivisible particles known as atoms.
2. The properties of all the atoms of a given element are same including mass. This can also be stated as, all the atoms of an element have identical mass; atoms of different elements have different masses.
3. Atoms of different elements combine in fixed ratios to form compounds.
4. Atoms are neither created nor destroyed. This implies that during chemical reactions, no atoms are created nor destroyed. The formation of new products (compounds) results from the rearrangement of existing atoms (reactants).

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