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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 atomโ€™s mass. He suggested that the nucleus contained a particle with a positive charge the proton.

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