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JAMIA MILLIA ISLAMIA Jamia Millia Islamia Solved Paper-2010

  • question_answer
        According to nuclear reaction,\[_{4}Be+_{2}^{4}He\xrightarrow[{}]{{}}_{6}^{12}C+_{0}^{1}n,\]the mass number of Be atom is

    A)  4                                            

    B)  8

    C)  6                                            

    D)  9

    Correct Answer: D

    Solution :

                    \[_{4}B{{e}^{9}}{{+}_{2}}H{{e}^{4}}{{\xrightarrow[{}]{{}}}_{6}}{{C}^{12}}{{+}_{0}}{{n}^{1}}\] Hence, the mass number of Be atom is 9.


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