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NEETChemistryClassification of Elements and Periodicity in Properties

What are the elements of the sixth and seventh Periods called?

Options

  1. ALanthanoids and actinoids
  2. BHalogens and noble gases
  3. CAlkali metals and alkaline earth metals
  4. DTransition metals and post-transition metals

Correct answer

A. Lanthanoids and actinoids

Step-by-step solution

The 14 elements of both the sixth and seventh Periods are referred to as lanthanoids and actinoids, respectively.

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