JAMB - Chemistry (2024 - No. 36)

Na\(_2\)X ⇌  2Na\(^+\)  +  X\(^{2-}\)

The bond between Na and X is likely to be

covalent
dative
ionic
metallic

Explanation

Sodium is a metal and X is a non-metal, so the bond between them is ionic. Ionic bonds form when a metal bonds with a non-metal.

Element X receives 2 electrons from Na metal and became negatively charged.

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