Published by:
CGP EDU Academic Team
Published on: August 14, 2026
An element M crystallises in a body centred cubic unit cell with a cell edge of 300 pm. The density of the element is 6.0 g cm -3 . The number of atoms present in 180 g of the element is______x 10 23 .(Nearest integer)
Text Solution
Verified by ExpertsThe correct answer is:
22
(22)
M is body certred cubic , 
Z = 2
Let mass of 1 atom of M is A Edge length = 300 pm
Density = 6g/cm 3
Atomic mass = 48.6g
Mole in 180g = 
=3.7moles
Atoms of M = 3.7 x 6 x 10 23
= 22.22 x10 23 atoms
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