Question

Which is more ionic $\mathrm{NaCl}\mathrm{or}{\mathrm{MgCl}}_2$?

Answer 1

1. Sodium and Magnesium are the chemical elements that belong to the first and second groups of the periodic table respectively.
2. Sodium and Magnesium both donates the electron to form a positive charge on it called a cation.
3. Chlorine is present in both the compound and works as an anion.
4. The charge density will signify the covalent characters.
5. Greater is the charge density lesser it became ionic in nature.
6. Sodium is having $+1$ positive charge while Magnesium is having $+2$ positive charge.
7. This implies the greater charge density on Magnesium and so it does not show ionic characters as compared with $\mathrm{NaCl}$.
8. Sodium donates it one electron to become stable and that one electron is accepted by Chlorine to become stable.
   
9. Therefore, Sodium chloride is more ionic.