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VIT Engineering VIT Engineering Solved Paper-2008

  • question_answer
    \[^{234}U\]has 92 protons and 234 nucleons total in its nucleus. It decays by emitting an alpha particle. After the decay it becomes

    A)  \[^{232}U\]

    B)  \[^{232}Pa\]

    C)  \[^{230}Th\]

    D)  \[^{230}Ra\]

    Correct Answer: D

    Solution :

    Alpha particle has mass number 4 and atomic number 2. Therefore, after emission of an alpha particle. The mass number of the \[^{234}U\] will reduce by 4 and after decay it becomes \[^{230}Ra\].  


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