9th Class Science Atoms and Molecules Question Bank 9th CBSE Science Atoms and Molecules

  • question_answer
      What are the important features of Dalton' s atomic theory?

    Answer:

      The important features of the Dalton's atomic theory are (a)Every matter is made of very small particles, called atoms. (b) Atoms are the indivisible particles which cannot be created or destroyed in a chemical reaction. (c) Atoms of a given element are identical in mass as well as in chemical properties. (d) Atoms of different elements have different masses and chemical properties. (e) Atoms combine in the ratio of small whole numbers forming compounds. (f) The relative number as well as kinds of atoms are constant in a given compound.


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