The total number of atoms in one unit cell of face-centered unit cubic cell is ______ atoms.(a) 2(b) 6(c) 4(d) 8This question was addressed to me during an interview for a job.My doubt is from Solid State topic in section Solid State of Chemistry – Class 12

The total number of atoms in one unit cell of face-centered unit cubic

1.	The total number of atoms in one unit cell of face-centered unit cubic cell is ______ atoms.(a) 2(b) 6(c) 4(d) 8This question was addressed to me during an interview for a job.My doubt is from Solid State topic in section Solid State of Chemistry – Class 12
Answer» Right CHOICE is (c) 4 The explanation is: In face-centered cubic unit cell, atoms are present at each of the corners and at the CENTRE of the face of the cube. • 8 corners × \(\frac{1}{8}\)th of an ATOM = 1 • 6 FACES × \(\frac{1}{2}\) of an atom = 3 Thus, the total number of atoms in face-centered cubic unit cell: 1+3=4 atoms.

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