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An element has a body centered cubic (bc...

An element has a body centered cubic (bcc) structure with a cell edge of "288" pm.The atomic radius is:
(1) `(4)/(sqrt(3))``times288`pm
(2) `(4)/(sqrt(2))``times288`pm
(3) `(sqrt(3))/(4)``times288`pm
(4) `(sqrt(2))/(4)``times288`pm

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