Problem: A) Arrange the following substances in order of decreasing magnitude of lattice energy.CaO, NaF, SrO, KClRank from largest to smallest magnitude of lattice energy.

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We’re being asked to arrange the following substances in order of decreasing magnitude of lattice energy.


 To estimate the lattice energy (or ionic bond energy) of an ionic compound, we will use the following equation:


Ionic Bond Energy = |cation charge · anion charge|cation radius + anion radius

Radius = period number


• To determine the cation and anion charge, recall that some elements have common charges based on what group they belong to on the periodic table:

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Problem Details

A) Arrange the following substances in order of decreasing magnitude of lattice energy.

CaO, NaF, SrO, KCl

Rank from largest to smallest magnitude of lattice energy.