Which combination will give the strongest ionic bond ?

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Na+ and Cl−

Mg2+ and Cl−

Na+ and O2−

Mg2+ and O2−

answer is D.

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Detailed Solution

Ionic bond strength depends on two factors :a) Ionic charge - the greater the product of the ionic charges. the stronger the bond.b) Ionic size - the lower the sum of the anion and cation radii, the stronger the bond.Mg+2 and O-2 ions have smaller sizes and more charges compared to the rest. They will form a stronger ionic bond.

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