What statements correctly describe the crystal structure of halite?

The unit cell consists of eight ions: four are Na+ ions and the other four are Cl– ions.
The crystal structure is face-centered cubic (FCC).
The sodium 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.

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

personal, she chose to do it.

answer is: naturally occurring solid, inorganic compound or element is mineral.

minerals usually have crystalline form, that means than crystal constituents (atoms, molecules or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.

for example magnetite is a mineral of iron oxide (fe₂o₃).

calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (caco₃).

dolomite is an   carbonate mineral composed of calcium magnesium carbonate (camg(co₃)₂).