JEE Main & Advanced Sample Paper JEE Main Sample Paper-40

  • question_answer
    Which of the following is not an actinide?

    A) Curium               

    B) Californium

    C) Uranium               

    D) Terbium                

    Correct Answer: D

    Solution :

    Elements after lanthanum i.e. from Ce (58) to Lu (71) are all lanthanides. Atomic number of Terbium is 65 and hence it is a lanthanide not an actinide.


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