Lead metal has a density of 11.34 g/cm 3 and crystallizes i…

Chemistry Solid State General Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 13, 2026

Lead metal has a density of 11.34 g/cm 3 and crystallizes in a face–centered lattice. Choose the correct alternatives

the volume of one unit cell is 1.214 × 10 –22 cm 3

the volume of one unit cell is 1.214 × 10 –19 cm 3

the atomic radius of lead is 175 pm

the atomic radius of lead is 155.1 pm

Text Solution

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The correct answer is:

CHECK THE SOLUTION.

(a,c) Density =

so, Volume = = 1.213 × 10 –22 cm 3 ; 4r =

r = = 175 pm

Volume = a 3 = 1.213 × 10 –22

so, a = (1.213 × 10 –24 ) 1/3

a = 4.95 × 10 –8 cm.

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