Arrange the ionic compounds in order of increasing lattice energy: LiF, NaF, MgO, CaO Group of answer choices CaO < MgO < LiF < NaF LiF < NaF < MgO < CaO NaF < LiF < CaO < MgO NaF < LiF < MgO < CaO CaO < MgO < NaF < LiF MgO < CaO < LiF < NaF MgO < CaO < NaF < LiF

Explanation:

Lattice energy is defined as the energy released when formation of 1 mole of an ionic compound occurs due to the combination of its constituent ions.

Also, lattice energy is inversely proportional to the distance between the cation and anion. And, when we move down a group then there occurs an increase in the atomic radii of the atoms.

This means that smaller is the ionic distance between the cation and anion, more will be the lattice energy between the atoms.

Therefore, given ionic compounds are placed in increasing lattice energy as follows.

                           CaO < MgO < NaF < LiF

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