The stability of ionic crystal depends principally on:
Correct answer: B. Lattice energy of crystal
- A. High electron affinity of anion forming species
- B. Lattice energy of crystal
- C. Low Ionization energy of cation forming species
- D. Low heat of sublimation of cation forming solid
Explanation
The stability of ionic crystals depends on lattice energy which is released in the form of heat when two ions are brought together to form a solid. Lattice energy is the sum of all the interactions within the crystal.
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About Lattice Energy
Lattice energy describes the energy released when gaseous ions form one mole of an ionic solid, or the energy required to separate that solid into gaseous ions, depending on the convention used. Its value depends mainly on ionic charge and radius and is calculated through Born-Haber cycles.
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