Which of the following ionic solids is expected to have the highest melting point

CHEMISTRY · Single correct · A Level · Chemistry · Thermodynamics · Thermodynamics

Problem

Which of the following ionic solids is expected to have the highest melting point, primarily because it combines large ionic charges with small ion sizes? (a)

\mathrm{Al_2O_3}

(b)

\mathrm{CaO}

(c)

\mathrm{MgO}

(d)

\mathrm{NaF}

Related theory

Lattice Enthalpy
Ionic Bonding
Chemical Bonding and Molecular Structure
The ionic model
Thermodynamics

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