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The scientist who came up with the first widely recognized atomic theory is John Dalton.

What is Dalton's atomic theory?

The first thorough effort to categorize all matter in terms of atoms and their characteristics was Dalton's atomic theory.

Dalton based his hypothesis on the laws of mass conservation and constant composition. It has the following aspects:

  • The matter is made up of irreducible atoms, according to the first component of his theory.
  • The second aspect of the theory states that the mass and properties of every atom in a particular element are the same.
  • Compounds are combinations of two or more different sorts of atoms, according to the third section.
  • The theory's fourth section claims that a chemical reaction is an atom's rearrangement.

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