For a piece of coursework I am doing, I need to calculate the atomic packing factor of some ionic compounds. I have had no formal teaching in this area, so what I know comes from information I have found on the internet.
I take that the atomic packing factor is given by:
APF=VatomsVunit cell
Taking a unit cell of NaCl
, we get:
APF=2π(r3Cl+r3Na)3(rCl+rNa)3
