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    Question

    Protons were discovered by

    A Goldstein Correct Answer Incorrect Answer
    B Rutherford Correct Answer Incorrect Answer
    C Thompson Correct Answer Incorrect Answer
    D Chadwick Correct Answer Incorrect Answer

    Solution

    In 1911 Ernest Rutherford who performed many experiments to explore radioactivity did an experiment in which he discovered that the atom must have a concentrated positive centre charge that contains most of the atom’s mass. He suggested that the nucleus contained a particle with a positive charge the proton.

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