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The p-Block Elements — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistryThe p-Block Elements1 Mark
MCQ
Which element does not show allotropy?
  • ✓
    $Pb$
  • B
    $Si$
  • C
    $C$
  • D
    $Sn$
✓

Answer

Correct option: A.
$Pb$
$Pb$ orbitals are too diffused to form strong single $Pb-Pb$ bonds.

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