A) 75 pm
B) 300 pm
C) 240 pm
D) 152 pm
Correct Answer: D
Solution :
For BCC structure \[\sqrt{3}\,a=4r\] \[r=\frac{\sqrt{3}}{4}a\] \[=\frac{\sqrt{3}}{4}\times 351=152\,\]pm.
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