JCECE Engineering JCECE Engineering Solved Paper-2013

  • question_answer
    There are 14 elements in actinoid series. Which of the following elements does not belong to this series?

    A) \[U\]                                    

    B) \[Np\]

    C) \[Tm\]                                 

    D)  \[Fm\]

    Correct Answer: C

    Solution :

    Actinoid series is with atomic number 90 to 103. Thulium \[(Tm)\] has atomic number 69.


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