The Atomic Radius of Zinc Is 137 Pm

The atomic radius of zinc is 137 pm.Estimate its density,given that the metal has a close-packed structure.

A) 7.47 g.cm ^{- 3}
B) 10.2 g.cm ^{- 3}
C) 14.0 g.cm ^{- 3}
D) 4.49 g.cm ^{- 3}
E) 19.2 g.cm ^{- 3}