If the side length of a face-centered cubic $(fcc)$ unit cell of a metal is $400 \ pm$, the approximate radius of the metal atom in $pm$ is $(\sqrt{2} = 1.414)$.

$A$ compound is formed by elements $A$ and $B$. This crystallises in the cubic structure where the $A$ atoms are at the corners of the cube and $B$ atoms are at the body centres. The simplest formula of the compound is

What is the coordination number of a cation present in a tetrahedral void?

What is the coordination number in a calcium fluoride $(CaF_2)$ type structure?

Structure similar to zinc blende is found in

In a face-centered cubic $(FCC)$ unit cell,what fraction of an atom located at the face center is shared by one unit cell?