Question

why is dalton's atomic theory considered as a milestone with regard to the structure of an atom

Answer 1

Dalton's atomic theory was the first complete attempt to describe all matter in terms of atoms and their properties. Dalton based his theory on the law of conservation of mass and the law of constant composition. ... Parts of the theory had to be modified based on the discovery of subatomic particles and isotopes.

Answer 2

Answer:

according to dalton atomic theory, all matters whether an element, a compound, or a mixture is composed of small particles called atom. the postulate of this theory may be stated as follows :

Explanation:

1. all matters is made of very tiny particles called atom, which participate in chemical reaction.

2. atoms are invisible particles, which can't be created or destroyed in a chemical reaction.

3. the relative number and kinds of atoms are constant in a given compound.