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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
Electronic configuration of last element of the volatile metal group is
  • A
    $[Rn]\, 5f^{14}\,6d^{10}\,7s^2$
  • ✓
    $[Xe]\, 4f^{14}\,5d^{10}\,6s^2$
  • C
    $[Rn]\, 5f^{14}\,6d^{1}\,7s^2$
  • D
    $[Xe]\, 4f^{14}\,5d^{1}\,6s^2$
✓

Answer

Correct option: B.
$[Xe]\, 4f^{14}\,5d^{10}\,6s^2$
b

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