BCECE Engineering BCECE Engineering Solved Paper-2001

  • question_answer
    In isotones the atomic number and mass numbers are:

    A) same                      

    B)        different

    C) equal                     

    D)        zero

    Correct Answer: B

    Solution :

    Key Idea: The isotones are atoms of differed elements which have same number of neutrons. The isotones have different atomic numbers and atomic mass.


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