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Schottky Defect

Aluminium cry...

Question

Aluminium crystallizes in an FCC structure. Atomic radius of the metal is 125 pm. What is the length of the side of the unit cell of the metal?

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Solution

For FCC

$a = 2 \sqrt{2} r$
$= 2 \times 1.414 \times 125 = 353.5 p m$

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