The ratio of cationic radius to anionic radius in an ionic crystal is greater than $0.732$. Its coordination number is

How is the anti-fluorite structure derived from the fluorite structure?

An ionic compound $AB$ has $ZnS$ type structure. If the radius of $A^{+}$ is $22.5 \ pm$, then the ideal radius of $B^{-}$ would be .............. $pm$.

In a simple cubic unit cell,how many unit cells share each lattice point located at the corner?

The coordination number of a sphere in a face-centered cubic $(fcc)$ lattice is .....

In an ${A^{+}}{B^{-}}$ ionic compound, the radii of ${A^{+}}$ and ${B^{-}}$ ions are $180 \ pm$ and $187 \ pm$ respectively. The crystal structure of this compound will be: