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The metal calcium crystallises in fcc un...

The metal calcium crystallises in fcc unit cell with a = 600 pm. Calculate the density of the metal if it contains `0.2%` Schottky defects.

A

`2.05g//cc`

B

`5g//cc`

C

`20g//cc`

D

`50g//cc`

Text Solution

Verified by Experts

The correct Answer is:
1
Due to schottky defects no. of atoms decreases
`z=4-4xx(0.2)/(100)=3.992, rho=(z.m)/(N_(0)a^(3))`
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