試題詳解

6.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)5 anions and 6 cations
(B)5 anions and 3 cations
(C)2 anions and 3 cation
(D)3 anions and 4 cations
(E)2 anions and 2 cations