11th Class Chemistry Classification of Elements and Periodicity in Properties

  • question_answer 52)   Which of the following is not an actinoid? (a) Curium, (Z = 96)                                                         (b) Californium, (Z = 98) (c) Uranium, (Z = 92)                                                       (d) Terbium, (Z = 65)

    Answer:

      (d) Actinide series consists of fourteen elements from Z = 90 to Z = 103.

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