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

Which statement is correct for $Fe_3O_4$?

How many total constituent particles are present in a simple cubic unit cell?

An ionic crystal $LiAg$ arranges in a cubic crystal system in which the coordination number of each $Li^+$ and $Ag^+$ is $8$. The crystal structure is:

$A$ crystal is formed by two elements $X$ and $Y$ in a cubic structure. $X$ atoms are at the corners of a cube,while $Y$ atoms are at the face centers. The formula of the compound will be:

An element crystallizes in a $bcc$ lattice. The number of nearest neighbors of the element is