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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 of the following electronic configuration represent representative elements
  • A
    $ns^{1,2}\,\,np^{1-5}$
  • ✓
    $ns^{1,2}\,\,np^{0-5}$
  • C
    $ns^{1,2}\,\,np^{0-6}$
  • D
    $ns^{1,2}\,\,np^{1-6}$
✓

Answer

Correct option: B.
$ns^{1,2}\,\,np^{0-5}$
b
Representative elements are $s$ and $p-$ block element.

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