The coordination number for $Cu$ (Copper) in its crystal structure is:

If a metal has a $fcc$ crystal structure,the coordination number is $12$ because

In the calcium fluoride structure,the coordination number of the cation and anion are respectively:

In a $BCC$ lattice containing $X$ and $Y$ type of atoms, $X$ type of atoms are present at the corners and $Y$ type of atoms are present at the body center. In its unit cell, if three atoms are missing from the corners, the formula of the compound is:

What is the volume occupied by particles in $BCC$ structure if '$a$' is the edge length of the unit cell?

If the coordination number of an element in its crystal lattice is $8$,what will be its packing structure?