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Reactivity with Halogens and Hydrogen (Group 2)

Why the latti...

Question

Why the lattice energy of LiF is higher than the other metallic fluoride?

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Solution

Smaller the size (internuclear distance), more is the value of lattice energy/enthalpy
Since internuclear distance is expected to be least in LiF its lattice energy is higher than other mettalic flourides.

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