Explanation:
When sodium reacts with with chlorine atoms, an electrovalent bond is formed as a result of this interaction
The driving force for this interatomic interaction is the need for both sodium and chlorine to attain a stable electronic configuration.
Sodium has one valence electron, Chlorine has 7 valence electrons.
Na = 2, 8, 1
Cl = 2, 8, 7
Sodium loses one electron as the less electronegative specie;
Na → Na⁺ + e⁻
Chlorine then gains the one electron:
Cl + e → Cl⁻
Combine reaction;
Na⁺ + Cl⁻ → NaCl
The Na transfers an electron to Cl and thereby becomes positively charged. The chlorine becomes negatively charged. The electrostatic attraction between the two develops the ionic bond.
