The ionic radii of three halide ions are as follows: Cl⁻ = 181 pm, Br⁻ = 196 pm, I⁻ =…
CHEMISTRY · Single correct · A Level · Chemistry · Thermodynamics · Thermodynamics
Problem
The ionic radii of three halide ions are as follows: Cl⁻ = 181 pm, Br⁻ = 196 pm, I⁻ = 220 pm. All three salts listed below contain the Li⁺ cation (radius 90 pm). Which sequence correctly orders the three salts from GREATEST to LEAST lattice energy?
(a) LiCl>LiBr>LiI
(b) LiI>LiBr>LiCl
(c) LiBr>LiCl>LiI
(d) LiCl>LiI>LiBr