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Density

A metal cryst...

Question

A metal crystallises with a F.C.C. lattice. The edge of the unit cell is 408 pm. The diameter of the metal atom is

A

288 pm

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B

408 pm

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C

144 pm

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D

204 pm

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Solution

The correct option is A 288 pm
In FCC, diameter $= \frac{a}{\sqrt{2}} = \frac{408}{1.414} = 288.543 p m$

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