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DUMET Medical DUMET Medical Solved Paper-2007

  • question_answer
    In the table
    Proton Electron Charge
    23 X +3
    46 43 Y
    X and Y are

    A)  20, -3         

    B)  20, +3

    C)  26,-3        

    D)  none of these

    Correct Answer: B

    Solution :

    Atomic number = number of proton No. of electron in positive ion = no. of proton?charge No. of electron in negative ion = no. of proton + charge (No. of electron) \[X=23-3=20\] (No. of charge) \[Y=46-43=+3\]


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