Q. Who formulated this atomic theory stating that matter is made of particles or atoms which are not sub-divided during chemical change?
Solution:
- Dalton formulated his atomic theory stating that matter is made of particles or atoms which are not sub-divided during chemical change.
- A theory of chemical combination, first stated by John Dalton in 1803.
- It involves the following postulates:
- (1) Elements consist of indivisible small particles (atoms).
- (2) All atoms of the same element are identical; different elements have different types of atom.
- (3) Atoms can neither be created nor destroyed.
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