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Home  >>  AIMS  >>  Class12  >>  Chemistry  >>  Solid State
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Chromium metal crystallises in a body centred cubic lattice. The length of the unit cell edge is found to be 287 pm. Calculate the atomic radius of chromium.

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For body centred cubic lattice, r =$\large\frac{\sqrt 3 a}{4}$
Given, edge length, a =287 pm
$r=\large\frac{\sqrt 3\times 287}{4}$
$\;\;=\large\frac{1.73\times 287}{4}$
r = 124.12 pm
Hence (A) is the correct answer.
answered May 30, 2014 by sreemathi.v
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