Chemical Bonding and Molecular Structure - Result Question 11
####11. Among the following which compound will show the highest lattice energy?
(a) $KF$
(b) $NaF$
(c) $CsF$
(d) $RbF$
[1993]
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Solution:
- (b) For compounds containing ions of same charge, lattice energy increases as the size the ions decrease. Thus, $NaF$ has highest lattice energy. The size of cation is in the order $Na^{+}<$ $K^{+}<Rb^{+}<Cs^{+}$.
