Concept:The ionic character of a bond is directly proportional to the difference in electronegativity between the metal cation and the non-metal anion.
Formula:$$ \text{Max } \Delta\text{EN} = \text{Most Ionic Character} $$
Solution:- Fluorine (\( \text{F}^{-1} \)) is the most electronegative element in the periodic table (EN = 4.0).
- The difference in electronegativity between Iron and Fluorine will be the largest possible among the given choices.
- Therefore, the bond between \( \text{Fe}^{+2} \) and \( \text{F}^{-1} \) will exhibit the highest percentage of ionic character.
Why other options are incorrect:- Option A, Option B, Option C: Nitrogen, Tin, and Phosphorus have significantly lower electronegativities than Fluorine, resulting in bonds with higher covalent character.
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