what is the Dalyons atomic theory
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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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- His theory contained five main propositions:
- All matter is comprised of tiny, definite particles called atoms.
- Atoms are indivisible and indestructible.
- All atoms of a particular element share identical properties, including weight.
- Atoms of different elements contain different mass.
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