Question

The valency of sodium is $1$. The valency of chlorine is $1$. Write the Formula of Sodium Chloride.

Answer 1

Chemical formula

• The chemical formula of a compound is a symbolic representation of its composition.

Formula of Sodium Chloride

$$\begin{gathered} \mathrm{Symbol}\mathrm{Na}\mathrm{Cl} \\ \mathrm{Valency}11 \end{gathered}$$

• Crossover the valencies of the combining atoms.
• So, the formula of Sodium chloride is $\mathrm{NaCl}$.