What is the coordination number of $Cu$ in a face-centered cubic $(fcc)$ lattice?

$A$ compound contains $Ca, Ti$ and $O$ elements. If $Ca^{2+}$ ions are at the corners of the cube,$Ti$ ions are at the body center,and $O^{2-}$ ions are at the face centers,then the molecular formula of the compound and the oxidation state of $Ti$ are respectively ........

In a face-centred cubic $(FCC)$ lattice,atoms of $A$ form the corner points and atoms of $B$ form the face-centred points. If two atoms of $A$ are missing from the corner points,the formula of the ionic compound is

What is the coordination number of a particle in $hcp$ structure?

Explain the calculation of the number of atoms in a primitive cubic unit cell.

The number of atoms contained in one face-centred cubic $(FCC)$ unit cell of a monoatomic substance is: