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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
The element with highest value of ionization potential is
  • A
    Potassium
  • ✓
    Helium
  • C
    Hydrogen
  • D
    Xenon
✓

Answer

Correct option: B.
Helium
b
(b) $He$ and $Xe$ belongs to same group but $He$ has higher ionisation energy because of small size.

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