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How many atoms can be assigned to its un...

How many atoms can be assigned to its unit cell if an element forms (i) a body centred cubic cell and （ii) face centred cubic cell ?

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Atoms per unit cell in a body-centred cubic cell =`8xx1/8` (from corners )+ 1 (from body centre )=2
Atoms per unit cell in a face-centred cubic cell=`8xx1/8` (from centres ) + `6xx1/2` (from face centres ) =4
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