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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

`10.376 g//cm^3`

B

`5.188 g//cm^3`

C

`7.289 g//cm^3`

D

`2.144 g//cm^3`

Text Solution

Verified by Experts

The correct Answer is:
B
`rho = (Z xx M)/(N_A xx a^3) = (2 xx 100)/(6.023 xx 10^23 xx (400 xx 10^(-10))^3)`
` = 5.188 g//cm^3`
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