Question

The correct option with respect to the Pauling electronegativity values of the elements is:

• A. Ga < Ge
• B. Si < Al
• C. P > S
• D. B < C

Answer 1

Answer: (A), (D)

The correct options are
A Ga < Ge
D B < C

Electronegativity increases across a period because of the number of charges on the nucleus increases. That attracts the bonding pair of electrons more strongly.

The correct order of electronegativity is:

$B<C$
$Al<Si$
$P<S$

$Ga<Ge$

Hence, the correct options are $\text{A}$ and $\text{D}$