The number of atoms contained in a fcc unit cell of a monoatomic substance is
The number of atoms contained in a fcc unit cell of a monoatomic substance is
A. 1
B. 2
C. 4
D. 6
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Correct Answer - C
In fcc, contribution of each atom present at the corner = `1/8`
Contribution of each atom present at the face centre `=1/2`
`threrefore` Total number of atoms in fcc
`8xx1/8+6xx1/2`
=1+3=4
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