If half of the tetrahedral holes in a face-centered cubic unit cell are filled, what must be the stoichiometry of the ionic compound, written as nonhole sites:hole sites in lowest terms?
A)2:1
B)1:1
C)1:2
D)4:1
E)2:3

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The Answer of If half of the tetrahedral holes in a face-centered cubic unit cell are filled, what must be the stoichiometry of the ionic compound, written as nonhole sites:hole sites in lowest terms?
A)2:1
B)1:1
C)1:2
D)4:1
E)2:3

If Half of the Tetrahedral Holes in a Face-Centered Cubic