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  5. Structure of Atom / परमाणु संरचना

Railways General Science & Technology Structure of Atom / परमाणु संरचना Sample Paper Structure of Atom Sample Test Paper-14

  • question_answer
    The mass number of a nucleus is

    A)  Always less than its atomic number

    B)  The sum of the number of protons and neutrons present in the nucleus

    C)  Always more than the atomic weight

    D)  A fraction

    Correct Answer: B

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