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CBSE Class 9 Answered

<div><strong>What are Dalton's atomic theory ?</strong></div>
Asked by kps_rc2 | 07 Nov, 2017, 05:33: PM
Expert Answer
Dalton's Atomic Theory

Dalton’s theory is the basic theory about the nature of matter. According to his theory, all matter, whether a solid, liquid or gas or an element, compound or mixture, is composed of small particles called atoms.

The Postulates of Dalton's Atomic Theory

  • All matter is made up of very tiny particles called atoms.
  • Atoms are indivisible particles, which can neither be created nor destroyed in a chemical reaction.
  • The atoms of a given element are identical in mass and chemical properties.
  • Atoms of different elements have different masses and chemical properties.
  • Atoms combine in the ratio of small whole numbers to form compounds.
  • The relative number and the types of atoms are constant in a given compound.
Answered by Varsha | 08 Nov, 2017, 10:28: AM
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