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

Gujarat BoardEnglish MediumSTD 11 ScienceJEESTD 11 - 3. Classification of elements and periodicity in properties4 Marks
MCQ
On moving down a group of regular elements, both atomic and ionic radii increases with increasing
  • ✓
    Atomic number
  • B
    Atomic weight
  • C
    Atomic mass
  • D
    None of these
✓

Answer

Correct option: A.
Atomic number
a
On moving down the group, as atomic no. increases, atomic radii and ionic radii increases. As $e { }^{-}$s are added to new orbitals thereby increasing the radii.

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