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Question

The f-block elements are called as ______________.


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Solution

f-block elements:

  • f-block elements are also referred to as inner transition elements because of their placement in the periodic table due to their electron configurations.
  • The f-block consists of elements in which the 4f and 5f orbitals are progressively filled.
  • It contains two series i.e lanthanoids and actinoids.
  • The properties of lanthanoids and actinoids differ from d-block elements thus they are placed separately in the periodic table.
  • The electronic structure of f-block elements differs from the mainstream elements.

Hence, the f-block elements are called inner transition elements.


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