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

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistry3. Classification of elements and periodicity in properties1 Mark
MCQ
If the valency shell electronic structure for an element is $n{s^2}n{p^5}$, this element will belong to the group of
  • A
    Alkali metals
  • B
    Inert metals
  • C
    Noble gases
  • ✓
    Halogens
✓

Answer

Correct option: D.
Halogens
d
The valence shell or orbital electronic configuration of halogens($17^{th}$ group elements) is $n s^2 \,n p^5$.

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