BCECE Engineering BCECE Engineering Solved Paper-2009

  • question_answer
    The standard for atomic mass is

    A)  \[_{1}^{1}H\]                   

    B)         \[_{6}^{12}C\]                 

    C)  \[_{6}^{14}C\]                 

    D)         \[_{8}^{16}O\]

    Correct Answer: B

    Solution :

    Atomic mass is a number that indicates as how many times an atom of an element is heavier as compared with 1/12 of the mass of an atom of carbon\[-12(_{6}^{12}C).\] Hence, standard for atomic mass is\[_{6}^{12}C.\]                          


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