Question

explain the postulates and Dalton's atomic theory

Answer 1

Following are the postulates of Dalton's Atomic Theory-
1. All matter consists of very tiny particles called atoms.
2. Atoms are indivisible or indestructible.They can neither be created nor be destroyed.
3. In chemical reactions, atoms rearrange , combine, or separate but they do not themselves break apart .
4. All atoms of a particular element are identical in mass and other properties.
5. The atoms of one element are different from the atoms of all other elements .
6. Atoms of one element combines with atoms of another element in fixed whole numbers to form compounds.

Answer 2

Answer:

Dalton's atomic theory was the first complete attempt to describe all matter in terms of atoms and their properties. ... The first part of his theory states that all matter is made of atoms, which are indivisible. The second part of the theory says all atoms of a given element are identical in mass and properties.