Question

drawback of Dalton's theory and J.J Thomson's Model?​

Answer 1

The indivisibility of an atom was proved wrong: an atom can be further subdivided into protons, neutrons and electrons. However an atom is the smallest particle that takes part in chemical reactions. According to Dalton, the atoms of same element are similar in all respects.

Answer 2

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• Dalton's atomic theory:-
• Atoms are not indivisible.
• Atoms of different elements are not identical. Example - Isobars.
• Atoms of same elements are not identical. Example - Isotope.