Answer:
FCC is the correct answer.
Step-by-step explanation:
APF - Atomic packing factor is the ratio of the volume by the atom in a unit cell to the total volume occupied in the unit cell. for Face centered cubic (FCC), they offer an APF of 0.74.
example of atoms of elements under the category of APF are; copper, silver, lead. the likes of cadmium, magnesium fall under the category of hexagonal closed packed HCP.
