Question

When did John dalton propose atomic theory?What were it's postulates?​

Answer 1

Answer:

John Dalton was a British teacher who published this first theory in 1808 finding work based on experiments and the laws of chemical combination all consists of indivisible particles called atom

Explanation:

the postulates of Dalton's atomic theory were:-

1) the matter is made up of individual particles known as atoms.

2) the properties of all the atoms of a given element are the same including mass.

3) atoms of different elements combine infixed ratios to form compounds.

4) atoms are neither created nor destroyed.

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Answer 2

Answer:

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