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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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