write down the postulates of Dalton's atomic theory. (class 11th)
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Answer:
John Dalton, a British school teacher, published his theory about atoms in 1808. His findings were based on experiments and the laws of chemical combination.
POSTULATES :
1) All matter consists of indivisible particles called atoms.
2) Atoms of the same element are similar in shape and mass, but differ from the atoms of other elements.
3) Atoms cannot be created or destroyed.
4) Atoms of different elements may combine with each other in a fixed, simple, whole number ratios to form compound atoms.
5) Atoms of same element can combine in more than one ratio to form two or more compounds.
6) The atom is the smallest unit of matter that can take part in a chemical reaction.
⚡Hope it will help you.⚡
Postulates of Dalton's Atomic Theory
1.All matter is made up of very small particles called atoms
2.Atoms can't be destroyed or created by chemical process
3.All the atoms of a given element are the same
4.During chemical combination atoms of different elements combine
5.Atoms of different element have different masses,chemical properties etc.
6.Atoms of the same elements can combine in more than one ratio to produce more than one compound
Advantage of Dalton's Atomic Theory
1.It has enabled us to explain the laws of chemical combination