Explain the binding energy is larger in the crystal

Reference no: EM13204785

The internuclear distances in gas-phase ionic molecules are considerably smaller than those in the corresponding crystals.

For exemple, the internuclear distance in NaCl(g) is 2.3606 angstrom, whereas in NaCl(s) the shortest Na-Cl distance is 2.814 angstrom. Explain why this should be so when the binding energy is larger in the crystal.

Reference no: EM13204785

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