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  3. RAJASTHAN PMT

RAJASTHAN PMT Rajasthan - PMT Solved Paper-2007

  • question_answer
    Atomic number of an element is equal to the number of

    A) protons

    B)        neutrons

    C)        protons + electrons

    D)        protons + neutrons

    Correct Answer: A

    Solution :

    Atomic number = number of protons                 = number of electrons                 Mass number = number of protons                 + no. of neutrons


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