CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Lead metal has a density of 11.34 g cm3 and crystallizes in a face-centered lattice. Choose the correct alternatives.

A
The volume of one unit cell is 1.214×1022 cm3
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
The volume of one unit cell is 1.214×1019 cm3
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
The atomic radius of lead is 175 pm
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
The atomic radius of lead is 155.1 pm
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct options are
B The atomic radius of lead is 175 pm
C The volume of one unit cell is 1.214×1022 cm3
The expression for density is given below:
Density=Z×MNA×volume

Volume =4×2076.02×1023×11.34=1.213×1022 cm3

For FCC, we have 4r=a2

r=4.95×108×24=175 pm

Volume =a3=1.213×1022 cm3

Edge length=a=(1.2131024)13 a=4.95× 108 cm

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Density
CHEMISTRY
Watch in App
Join BYJU'S Learning Program
CrossIcon