Question

The number of unpaired electrons in valence shell of silicon is:

• A. $2$
• B. $3$
• C. $1$
• D. $0$

Answer 1

Answer: (A)

$2$

The electronic configuration of silicon is $[Ne{]}^{10}3s^{2}3p^2$

We can see from E.C there are two unpaired electrons in $3p$ subshell.

So, the correct option is $A$