1. The discovery of subatomic particles, such as electrons, protons, and neutrons, through experiments like cathode ray tube and nuclear experiments, disproved Dalton's notion of atoms as indivisible, leading to the modification of atomic theory.

    The discovery of subatomic particles, such as electrons, protons, and neutrons, through experiments like cathode ray tube and nuclear experiments, disproved Dalton’s notion of atoms as indivisible, leading to the modification of atomic theory.

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  2. Dalton's idea of atomic indivisibility was challenged by the discovery of subatomic particles, such as electrons, protons, and neutrons, through experiments like cathode ray tube and nuclear experiments.

    Dalton’s idea of atomic indivisibility was challenged by the discovery of subatomic particles, such as electrons, protons, and neutrons, through experiments like cathode ray tube and nuclear experiments.

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    • 4