What is the number of unit cells in one mole of an atom of a metal that forms a simple cubic structure?

The structure of $TlCl$ is similar to $CsCl$. What is the coordination number of $Tl^{+}$?

Potassium fluoride $(KF)$ has an $NaCl$ type structure. What is the distance between $K^{+}$ and $F^{-}$ ions if the unit cell edge length is $a \ cm$?

How many atoms are there in a cubic unit cell having one atom on each corner and two atoms on each body diagonal of a cube?

$A$ solid compound contains atoms $X, Y,$ and $Z$. In its unit cell,atoms $X$ are at the corners,atoms $Y$ are at the body center,and atoms $Z$ are at the face centers. The formula of the compound is:

In zinc blende structure,the coordination number of $Zn^{2+}$ ion is