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Class 12Chemistryd-and f-Block ElementsLanthanoids and Actinoids
Easy

Which series of elements are radioactive?

  • A
    Lanthanoids
  • B
    Actinoids
  • C
    Transition metals
  • D
    Alkali metals
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Class 12 Questions

Class 12

Chemistry Questions

Chapter

d-and f-Block Elements

Subtopic

Lanthanoids and Actinoids

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