Question

write any three postulates of Dalton's atomic theory

Answer 1

The three postulates of Dalton's atomic theory are:

• Dalton's atomic theory is a scientific theory that discusses the nature of matter.
• He proposed this theory in 1808.

Three postulates of this theory are:

1. All matter is composed of extremely tiny particles known as atoms and these are particles that are indivisible.
2. Atoms constituting one particular matter will be similar. This means they have the same mass, are of the same size, and also they exhibit the same properties.
3. The atoms cannot be destroyed and also new atoms cannot be created. With the help of chemical reactions, they can be separated, joined, or rearranged.

Answer 2

John Dalton initially proposed the theory of chemical combination in 1803.

Dalton’s atomic theory is based on the following three premises:

1. Elements are made up of microscopic indivisible particles known as atoms.

2.  Atoms of the same element are all identical and, atoms of different elements are of distinct kinds.

3. It is completely impossible to produce or destroy an atom.