Physics, asked by vaishnavi127, 1 year ago

Dalton's atomic theory

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Answered by stylishtamilachee
21
Hey friend here is your answer......


Dalton's Theory :

The theories of kanad as well as of Democritus and Leukiposs remained forgotten for more than 2000 years . But when experimental Chemistry develop, it became necessary to explain observed facts . in 1803, english chemist John Dalton put forward his atomic theory , which can be summarised as follows .

1. elements are made up of very small particles of matter, called items ( derived from the Greek word or atomos ) .

2. Atoms are indivisible .

3. The atoms of an element have the same weight.

4. The atoms of different elements have different weights.

5. It is the atoms of elements that take part in a chemical reaction.

6. The atoms of an element combine in a simple numerical ratio with those of other elements to form a compound.


Hope it helps you......
Answered by Anonymous
8
Dalton → John Dalton

He used to fundamental laws of chemical combination that are the law of conservation of mass and law of constant proportion as the basis of his atomic theory.

Conclusion of Dalton's atomic theory :

Atom is the smallest particle of an element which cannot be further divided and that retains all the characteristic properties of that element.

Some assumption and postulates of Dalton's theory are:

• An atom cannot be further divided into still smaller particles.

• Atom can neither be created nor be destroyed in the chemical process.

• The atom of one element are different from those of any other elements.

• Atoms of different elements make combine in simple whole number ratio to form compound atoms of a new substance.

• All forms of matter are made up of very small discrete particles called atoms.

#Be Brainly !!
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