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

Gujarat BoardEnglish MediumSTD 11 ScienceChemistryThe p-Block Elements1 Mark
MCQ
The maxium covalency of aluminium is:
  • A
    $4$
  • ✓
    $6$
  • C
    $8$
  • D
    $3$
✓

Answer

Correct option: B.
$6$
The maximum covalency of Aluminium is $6$. Since Aluminium belongs to the $3^{rd}$ period, it possesses a $3d$ subshell as well. As a cation it can use $\ce{sp^3d^2}$ hybrid orbitals for a covalency of $6$.

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