Q. 115.0( 3 Votes )

The edge length o

Answer :

Given:

Molecular mass, M = 75g


Edge Length, a= 5 A° = 5 × 10-10 m


Density, d = 2g/cc


To find: Radius of the metal atom, r


Solution:



Where z = number of atoms present per unit cell




Z = 2


Since the number of atoms is 2, the metal crystallizes in BCC structure.




r = 2.165 A° = 216.5 pm


Therefore the radius of the metal atom is 216.5 pm.


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