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      Question

      The atomic number of an atom is equal to

      the:
      A total number of protons present in the nucleus of an atom Correct Answer Incorrect Answer
      B sum of the number of electrons and that of neutrons Correct Answer Incorrect Answer
      C half of the number of electrons present in the nucleus of an atom Correct Answer Incorrect Answer
      D sum of the number of protons and that of neutrons Correct Answer Incorrect Answer

      Solution

      The correct answer is A

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