Argon crystallizes in such a way that the positions of the atoms are at $(0, 0, 0)$,$(0, 1/2, 1/2)$,$(1/2, 0, 1/2)$,and $(1/2, 1/2, 0)$. The type of unit cell is:

Coordination numbers of $Zn^{2+}$ and $S^{2-}$ in the crystal structure of wurtzite are

$A$ compound of $A$ and $B$ crystallises in a cubic lattice in which $A$ atoms occupy the lattice points at the corners of the cube. The $B$ atoms occupy the centre of each face of the cube. The probable empirical formula of the compound is

An $AB_2$ type structure is found in

What is the coordination number of $Ag^+$ in a $AgCl$ crystal lattice?

What is the total number of ions present in one unit cell of sodium chloride lattice?