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Crystal Lattice and Unit Cell

"In ionic sli...

Question

"In ionic slids the sum of the electron gain enthalpy and ionization enthalpy may be positive but still the structure gets stabilised due to the energy released in the formation of the crystal lattice".explain.

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Solution

the lattice energy release is enough to cope up with the lost for electron gain enthalpy and ionization enthalpy .
Thus the structure is still stable

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