Question

An element Z has a valency of 4. write the formula for its chloride.

Answer 1

An element Z has a valency of 4, and the formula for its chloride is

$$\begin{gathered} \mathrm{Symbol}\mathrm{Z}\mathrm{Cl} \\ \searrow \swarrow \\ \mathrm{Valency}4-1 \end{gathered}$$

As the valency of chloride ion is $-1$. By applying the criss-cross method molecular formula of chloride of Metal $\mathrm{z}$ is ${\mathrm{Z}}_1{\mathrm{Cl}}_4\mathrm{or}{\mathrm{ZCl}}_4$