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Railways Sample Paper RRBs Assistant Loco Pilot and Technician CBT STAGE-I Sample Paper-2

  • question_answer
    The atomic number of an element is 11 and the mass number is 23. The respective number of electrons, protons and neutrons in this atom will be

    A)  11, 11, 12        

    B)  11, 12, 11

    C)  12, 11, 11        

    D)  23, 11, 23

    Correct Answer: A

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