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  • Aluminium crystallises in a fcc structure. Atomic radius of the metal is 125 pm. What is the length of the side of unit cell of the metal ?       <div style="float:le

Aluminium crystallises in a fcc structure. Atomic radius of the metal is 125 pm. What is the length of the side of unit cell of the metal ?

 

 

 

 
 
 
 
 

Answers (1)

fcc structure.

Atomic radius = 125pm

edge length = ?

\begin{aligned} a &=2 \sqrt{2} r \\ a &=2 \times 1.414 \times 125 \\ &=353.5 \mathrm{pm} \end{aligned}

Posted by

Sumit Saini

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