The number of close neighbours in a body-centred cubic $(BCC)$ lattice of identical spheres is:

How many unit cells are present in $39 \ g$ of potassium that crystallizes in a body-centered cubic $(BCC)$ structure? [Atomic weight of $K = 39$]

$A$ 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

In the closest packed structure of a metallic lattice,the number of nearest neighbours of a metallic atom is

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

What is the number of atoms per unit cell in a face-centered cubic $(FCC)$ crystal lattice?