# The density of lead is 11.35 g $cm^{−3}$ and the metal crystallizes with face centred unit cell. Estimate the radius of lead atom. (at. mass of lead = 207 $g mol^{−1}$ and $N_A = 6.02 × 10^{23} mol^{−1}$).

174.9pm
Hence (A) is the correct answer.
answered Jun 2, 2014