In a face-centred cubic $(FCC)$ unit cell,what is the contribution of an atom located at the face to the unit cell?

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?

Identify the type of unit cell that has particles at the centre of each face in addition to the particles at eight corners of a cube?

Find the radius of an atom in $fcc$ unit cell having edge length $393 \ pm$. (in $pm$)

Which of the following statements is not true about the $NaCl$ structure?

In the fluorite structure,the coordination number of the $Ca^{2+}$ ion is.....