Solid StateHard
Question
Solid AB has a rock salt type structure. If the radius of the cation is 200 pm, then what is the maximum possible radius of the anion?
Options
A.483.1 pm
B.273.6 pm
C.200 pm
D.400 pm
Solution
$\frac{r^{+}}{r^{-}} = 0.414 \Rightarrow r^{-} = \frac{200}{0.414} = 483.1\text{ pm}$
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