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  4. The number of atoms per unit cell of bcc structure is

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Q. The number of atoms per unit cell of $bcc$ structure is

BITSATBITSAT 2017

Solution:

In bec structure,
The number of atoms at corners per unit cell $=\frac{1}{8} \times 8=1$ atom
The number of atoms at body centre per unit cell $=1$ atom
$\therefore $ Total number of atoms per unit cell $=1+1=2$ atoms