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3. Classification of elements and periodicity in properties — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistry3. Classification of elements and periodicity in properties1 Mark
MCQ
Cause of diagonal relationship is
  • A
    Similar electronic configuration of the elements
  • ✓
    Similar $e/r$ ratio of the elements
  • C
    Same number of valency electrons in the elements
  • D
    Same atomic weights of the elements
✓

Answer

Correct option: B.
Similar $e/r$ ratio of the elements
b
Diagonal resemblance is due to similar charge to size ratio (i.e. $e/r$ ratio).

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