Answer:
The unit cell consists of eight ions: four are Na+ ions and the other four are Cl– ions.
This is true because NaCl is a one to one ratio and each have 4 ions
The crystal structure is face-centered cubic (FCC).
This statement is also true
The sodium ions occupy the lattice points.
This is not true. Anions occupy lattice points. So the Cl- ions occupy the lattice points.
The crystal structure is body-centred cubic (BCC).
Each ion in this lattice has six of the other kind of ion as its nearest neighbors.
Both of these statements are false
