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Density of Li is 0.53"g cm"^(-3). The ed...

Density of Li is `0.53"g cm"^(-3)`. The edge length of Li is `3.5Å`. Find the number of Li atoms in a unit cell `(N_(0)=06.023xx10^(23),M=6.94)`.

A

2

B

4

C

1

D

None

Text Solution

Verified by Experts

The correct Answer is:
1
`rho=(z.m)/(N_(0)a^(3))`
mass of `24xx10^(23) "atoms"=200g`
mass of `6xx10^(23)"atoms"=50g`
`m=50,z=4`
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