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In a complex metal oxide crystallizing in the cubic system, the metal cations occupy the corners and face centers, while oxide anions occupy all the tetrahedral voids. What is the simplest formula of this compound?
MO
M₂O₃
MO₂
M₃O₄
A crystal structure has a face-centered cubic (FCC) arrangement of atoms A and atoms B occupy all the octahedral voids. If the atoms A are removed, what is the resulting lattice type for atoms B?
Simple Cubic
Body-centered Cubic
FCC
Hexagonal Close Packed
The ratio of the number of tetrahedral voids to octahedral voids in a close-packed structure is:
1:1
1:2
2:1
4:1
In a close-packed structure (either hcp or ccp), how many tetrahedral voids are present per atom?
1
2
3
4
In a close-packed structure of mixed oxides, the smaller cations occupy the tetrahedral voids. If the radius ratio of the cations and anions is between 0.225 and 0.414, what percentage of tetrahedral voids are occupied?
100%
50%
25%
75%
Determine the number of tetrahedral and octahedral voids present in a hexagonal primitive unit cell.
0, 0
2, 1
4, 2
6, 3
In a hypothetical crystal structure analogous to a hexagonal primitive unit cell but with two atoms per unit cell, how many tetrahedral voids would be present?
2
4
6
8
If a hexagonal close-packed (HCP) structure is considered, which contains 6 atoms per unit cell, what is the number of tetrahedral voids present?
6
8
12
18
Which statement is TRUE about the voids in a hexagonal primitive unit cell?
It contains two tetrahedral voids.
It contains one octahedral void.
It contains two octahedral voids.
It contains one tetrahedral void.
