Which of the following statements concerning a metal crystallized in a face-centered cubic cell is/are CORRECT?
1)One metal atom is located on each face of the unit cell,where it is shared equally between four unit cells.
2)One metal atom is located at the center of the unit cell.
3)A metal atom is located at each of the eight lattice points,where it is shared equally between eight unit cells.

Question

Quizplus · Accepted Answer

In a face-centered cubic (FCC) cell, each corner atom is shared by eight unit cells, and each face-centered atom is shared by two unit cells. Statement 3 is correct as it describes the corner atoms correctly. Statement 1 is incorrect because each face-centered atom is shared by two unit cells, not four. Statement 2 is incorrect because there is no atom at the center of an FCC unit cell.

Which of the Following Statements Concerning a Metal Crystallized in a Face-Centered