The number of atoms/molecules contained in one body-centered cubic unit cell is

If $a$ is the length of the side of a cube,the distance between the body-centered atom and one corner atom in the cube will be

The number of octahedral sites per sphere in a $fcc$ structure is

In an $fcc$ crystal lattice,atoms $A$ are present at the corners and atoms $B$ are present at the face centers. If one atom $A$ is missing from a corner,what is the molecular formula of the compound?

Copper crystallizes in $f.c.c.$ with a unit cell length of $361 \ pm$. What is the radius of copper atom? (in $pm$)

What is the total number of atoms present in an $fcc$ unit cell?