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The d & f Block Elements — Chemistry STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 ScienceChemistryThe d & f Block Elements1 Mark
MCQ
Differentiating electron in inner transition elements enters the ________ orbital.
  • A
    s
  • B
    p
  • C
    d
  • D
    f
✓

Answer

  1. f

Explanation:

In inner transition elements, the differentiating electron enters into f orbitals. So these elements are called f-block elements.

The ‘f’ – block elements are also known by the name of inner transition elements. In these elements, the last electron usually enters the penultimate i.e. (n – 2) f of the orbital.

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