Problem- NaF has a face-centered cubic unit cell in which the F- anions occupy corners and face centers, while the cations fit into the holw between adjacent anions. What is the density (in g/cm^3) if the ionic radii of Na+, F- ions are 102.9 pm and 136.0 pm, respectively? Hint: notice that the cation and anion touch each other and together make up the side of the cube.
Determine the solution for the above problem express your work in detail