What is the coordination number of a particle in a simple cubic close-packed 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 .............. $pm$.

What is the limiting radius ratio for a tetrahedral shape?

An $fcc$ unit cell of aluminium contains the equivalent of how many atoms?

An element crystallizes in a $bcc$ lattice. The number of nearest neighbors of the element is

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