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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
Which is correct about ionisation potential
  • A
    It is independent of atomic radii
  • B
    It increases with increase in atomic radii
  • C
    It remains constant with increase in atomic radii
  • ✓
    It decreases with increase in atomic radii
✓

Answer

Correct option: D.
It decreases with increase in atomic radii
d
(d) We know that ionisation potential gradually decreases of moving down the group while atomic size increases as we move down the group. Hence larger the atomic size, smaller is ionisation potential.

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