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

Gujarat BoardEnglish MediumSTD 12 ScienceChemistryThe d & f Block Elements1 Mark
MCQ
Smallest ionic radius is:
  • A
    La3+
  • B
    U3+
  • C
    Yb3+
  • D
    Cf3+
✓

Answer

  1. Yb3+

Explanation:

Atomic and ionic radius of lanthanides decreases from La to Lu. Due to the contraction of lanthanide the decrease in ionic radius of the element in the lanthanide series from lanthanum to lutetium occurs.

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