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States of Matter: Solid State
Copper Crystallizes in f.c.c with a unit cell length of 361 pm. What is the radius of copper atom?
$(a)\;108\;pm\qquad(b)\;127\;pm\qquad(c)\;157\;pm\qquad(d)\;181\;pm$
jeemain
chemistry
class12
ch1
states-of-matter
solid-state
calculations-involving-unit-cell-dimensions
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asked
Feb 17, 2014
by
sharmaaparna1
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Jul 15, 2014
by
balaji.thirumalai
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1 Answer
For f.c.c structure
Radius of the atom = $\large\frac{a}{2\sqrt2}$
$\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\; = \large\frac{361}{2\sqrt2}$
$\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\; = 127.56$
Hence answer is (b)
answered
Feb 17, 2014
by
sharmaaparna1
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