The crystalline structure known as body-centered-cubic
A)is characterized by the stacking of identical spheres.
B)occurs when each ion has eight nearest-neighbor ions of opposite charge.
C)corresponds to an alternating pattern of ions.
D)occurs when an ion of either kind has six nearest neighbors of the other kind.
E)None of these is correct.

Question

Quizplus · Accepted Answer

The body-centered-cubic structure is a type of crystal structure in which each ion has eight nearest-neighbor ions of opposite charge. This is the defining characteristic of this type of crystal structure. Option A is describing the close packing structure and option C is describing the rock salt structure, neither of which are characteristics of the body-centered-cubic structure. Option D is describing a specific case of the body-centered-cubic structure where the ions are of different kinds, but not a general characteristic. Therefore, the best choice is B.

The Crystalline Structure Known as Body-Centered-Cubic