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An element (atomic mass = 100 g//mol) ha...

An element (atomic mass `= 100 g//mol`) having bcc structure has unit cell edge 400 pm .Them density of the element is

A

`"10.37 g cm"^(-3)`

B

`"5.19 g cm"^(-3)`

C

`"7.29 g cm"^(-3)`

D

`"2.14 g cm"^(-3)`

Text Solution

Verified by Experts

The correct Answer is:
B
`d=(ZxxM)/(a^3xxN_A)`
`=(2xx100)/((400xx10^(-10))^3xx6.023xx10^23)`
`=5.188 g cm^(-3)`
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