An element occurs in bcc structure. It has a cell edge length of 250 pm. Calculate the molar mass if its density is 8.0 g cm-3. Also calculate the radius of an atom of this element.
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Concept Questions :-
Given : For bcc structure, Z = 2
Edge of the unit cell, a = 250 m
Density of the element, = 8.0 g/cm3
M = ? r = ?
Using the formula
= M =
M = M = 37.6 g mol-1
For, bcc, a = 250 =
r = = 108.25 pm