Question

An element ${}^{\prime }{A}^{\prime }$ forms a chloride $AC{l}_4$.

The number of electrons in the valence shell of ${}^{\prime }{A}^{\prime }$ is:

• A. $1$
• B. $2$
• C. $3$
• D. $4$

Answer 1

Answer: (D)

$4$

The valency of $Cl$ is 4.

In $AC{l}_4$, $4Cl$ atoms are attached so the valency of $A$ should be 4 in order to form a bond with 4 chlorine atoms.

Hence, option $D$ is correct.