Question

a compound crystallizes in bcc structure. what is unit cell edge length of daimeter of its atom is 120 pm? ​

Answer 1

Answer:

ans is 150primemeradian

Answer 2

Correct option is

A

51.8

The expression for the density of the unit cell is given below:

d=a3×NAn×M

Given that,

a=288 pm =288×10−10 cm

d=7.2 g cm−3

n=2

Substituting values in the above expression, we get

7.2=(288×10−10)3×6.023×10232×M 

⟹M=27.2×(288×10−10)3×6.023×1023=51.8

Hence, the atomic mass of the element is 51.8 g/mol.