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

The number of octahedral voids per lattice site in a lattice is $...$ (Rounded off to the nearest integer).

Which set of following characteristics for $ZnS$ crystal is correct?

In the structure of a solid, $W$ atoms are located at the cube corners of the unit cell, $O$ atoms are located at the cube edges, and $Na$ atoms are at the cube centers. The formula of the compound is:

The $8:8$ type packing is present in which of the following?

If the pressure on a $NaCl$ structure is increased,then its coordination number will