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Structure of Atom — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistryStructure of Atom1 Mark
MCQ
Element having atomic number $33$ belongs to this group?
  • A
    $\ce{III}$
  • B
    $\ce{IV}$
  • ✓
    $\ce{V}$
  • D
    $\ce{VI}$
✓

Answer

Correct option: C.
$\ce{V}$
Electronic configuration of element with atomic number $33$ is $\ce{1 s^2 2 s^2 2 p^6 3 s^2 3 p^6 4 s^2 3 d^{10} 4 p^3}$.
So, it is a $p\ -$ block element with $3$ electrons in $p$ orbital, therefore it lies in $5\ A$ group or $15$ group.

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