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A given metal crystalline out with a cu...

A given metal crystalline out with a cubic structure having edge length of `361` pm .if there are four metal atoms in one unit cell, what is the radius of metal atom?

A

80 pm

B

108 pm

C

40 pm

D

127 pm

Text Solution

Verified by Experts

The correct Answer is:
D
It is fcc structure , so `4r = a sqrt2`
` r = (361 xx sqrt2)/(4) = 127 ` pm
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