試題詳解

43. The unit cell in a certain lattice consists of a cube formed by an anion at each corner, an anion in the center, and a cation at the center of each face. The unit cell contains a net
(A) 2 anions and 3 cations
(B) 2 anions and 2 cations
(C) 5 anions and 3 cations
(D) 3 anions and 4 cations
(E) 5 anions and 6 cations.