The cell content (Z) of the unit cell of a h.c.p. space lattice is
Answer»
2 6 12 17
Solution :h.c.p. is the only one of the four (SIMPLE cubic, b.c.c., h.c.p. and c.c.p.) that has noncubic unit CELL. The unit cell is rectangular (Z = 2 as in b.c.c. as INDICATED below by dark LINES.