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Aluminium crystallizes in FCC structure....

Aluminium crystallizes in FCC structure. Atomic radius of the metalics 125 pm. Calculate the edge length of the unit cell.

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In FCC structure edge length `a= 2sqrt(2)r`
`=2 xx sqrt(2) xx 125 = 2 xx 1.414 xx 125 = 353.5`pm.
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