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The radius ratio for a hypothetical MX compound is 0.85
CHEMISTRY · Subjective · A Level · Chemistry · Bonding · Bonding
Problem
The radius ratio
r
cation
r
anion
\dfrac{r_{\text{cation}}}{r_{\text{anion}}}
r
anion
r
cation
for a hypothetical MX compound is 0.85. Identify the simplest three-dimensional lattice type (rock-salt or cesium-chloride) that maximizes attractions for this ratio.
Related theory
Ionic Bonding
Lattice Enthalpy
Chemical Bonding and Molecular Structure
The ionic model
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