How valence electron of sodium(Na) and react with valence electrons of Chlorine (CI)

Explanation:

When sodium (Na) reacts with Chlorine, it transfers its 1 outermost electron to the chlorine atom.

By losing one electron sodium atom form a sodium ion (Na⁺) and Similarly, By gaining one electron chlorine atom form chloride ion (Cl⁻).

Both ion have opposite nature of charge so they are held together by electrostatic force to form Sodium chloride.

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