What is the coordination number of sodium ions in the case of sodium chloride structure?

Find the radius of an atom in $fcc$ unit cell having edge length $393 \ pm$. (in $pm$)

Explain the crystal structure of sodium chloride $(NaCl)$.

The ratio of anion radius to cation radius of a crystal is $10 : 9.3$. Then,the coordination number of the cation in the crystal is

The edge length of a face-centred cubic unit cell is $508 \ pm$. If the radius of the cation is $110 \ pm$, the radius of the anion is .............. $pm$.

In solid $CsCl$,each $Cl^{-}$ ion is closely packed with how many $Cs^{+}$ ions?