On the basis of electronegativity differences between atoms, which of the following scientific claims is the most accurate regarding the bonding in Mg(NO3)2(8) ?

A) There is polar covalent bonding between Mg atoms and N atoms.

B) There is polar covalent bonding between Mg atoms and O atoms.

C) There is ionic bonding between N5+ ions and O2- ions.

D) There is ionic bonding between Mg2+ ions and NO3- ions.

Ionic bonding seems to be a form of interaction wherein the cationic as well as unpaired electrons are powerfully electrostatically connected.

Throughout the general view, the ionic bonding occurs between someone metal/nonmetal owing to their large electro(-) discrepancy, while bond formation occurs between nonmetals due to the relatively low electro(-) gap.
Even though there are metals as well as non-metals, the relative electronegativity differential between (Mg²⁺) and (NO₃⁻) however is large.

Thus the above response i.e., option D) is correct.

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