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Lithium iodide is more covalent than lithium fluoride.Why?

Lithium iodide is more covalent than lithium fluoride.Why?

Grade:11

2 Answers

Sunil Kumar FP
askIITians Faculty 183 Points
8 years ago
The large size of iodine exerts a more polarising power to lithium as compared to fluorine and thus has more covalent character than fluorine.Fluorine more over has high electronegativity. So the electro-static force of attraction between Li and F is very high and high enough to hold the two atoms together so firmly
prerana
15 Points
3 years ago
The electronegativity of fluorine is more than iodine . Also the covalent character increases down the group . Thus , lithium iodide is more covalent than lithium chloride

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