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AP Chemistry
2.3 Structure of Ionic Solids
AdvancedMCQMathematicalConceptual19.2k
A student investigates the factors that influence the lattice energy of ionic solids and collects the ionic radius data shown in the table below.

IonIonic radius (pm)
\(\text{Mg}^{2+}\)\(72\)
\(\text{Ca}^{2+}\)\(100\)
\(\text{Li}^+\)\(76\)
\(\text{Na}^+\)\(102\)
\(\text{O}^{2-}\)\(140\)
\(\text{F}^-\)\(133\)
\(\text{Cl}^-\)\(181\)

Based on Coulomb's law and the data in the table, which of the following correctly ranks \(\text{CaO}\), \(\text{LiF}\), \(\text{MgO}\), and \(\text{NaCl}\) in order of decreasing lattice energy magnitude (from greatest to least)?

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