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Question: Answered & Verified by Expert
If the lattice parameter for a crystalline structure is $3.6 \%$, then the atomic radius in fcc crystal is
ChemistrySolid StateNEETNEET 2008 (Mains)
Options:
  • A $1.27 \&$
  • B $1.81 Å$
  • C $2.10 Å$
  • D $2.92 \&$
Solution:
1485 Upvotes Verified Answer
The correct answer is: $1.27 \&$


$$
2 R=\frac{a}{\sqrt{2}}
$$
$$
\therefore R=\frac{a}{2 \sqrt{2}}
$$

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