The Picture Shown Below Represents a Two-Dimensional Lattice of Atoms

question 69

Multiple Choice

The picture shown below represents a two-dimensional lattice of atoms M and X.
-Which of the areas designated A,B,and C are smallest repeating units,analogous to two-dimensional unit cells?

• A)only A
• B)only B
• C)only C
• D)A,B,or C

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