Chapter 7.3, Problem 24PP

Interpretation Introduction

Interpretation:

The formula for ionic compounds composed of Sodium and Nitrate.

Concept introduction:

Chemical compounds are formed when the atoms, ions or molecules of two substances are attracted towards each other forming a chemical bond. This bond can be electrostatic when two oppositely charged ions are attracted towards each other and this bond is said to be ionic bond.

Answer to Problem 24PP

The formula of ionic compound composed of sodium and Nitrate is ${\text{NaNO}}_3$.

Explanation of Solution

The formation of Sodium Nitrate is when Sodium ion interact with Nitrate ion..

The electronic configuration of Aluminum is ${\text{1s}}^{\text{2}} {\text{2s}}^{\text{2}} {\text{2p}}^{\text{6}} {\text{3s}}^1$ or $\left[\text{Ne}\right]{\text{3s}}^1$

The Nitrate ion is Nitrogen bonded to 3 oxygen atoms. Here nitrogen atom has charge of +1 while each of the oxygen carries a charge of $\text{-}\raisebox{1ex}{$2$}\!\left/ \!\raisebox{-1ex}{$3$}\right.$.

Therefore, the net charge on ${\text{NO}}_3{}^{-}$ is -1

Sodium has one valence electron in its outermost shell and will give up this one electron to form Sodium ion, ${\text{Na}}^{+}$. As ${\text{NO}}_3{}^{-}$ is -1 and when it approaches Sodium ion, there is electrostatic force of attraction between one sodium ion and one Nitrate ion. This results in the formation of ${\text{NaNO}}_3$ compound.

Conclusion

The formula of ionic compound composed of sodium and Nitrate is ${\text{NaNO}}_3$.