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Surface Atoms in Crystals
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Surface Atoms in Crystals

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Questions and Answers

What is the primary reason for the deviation of atomic positions on a clean surface of a crystal from those found in the bulk?

  • Atoms on the surface do not interact with atoms in the bulk
  • The surface plane is not a perfect xy-plane
  • Atoms on the surface only interact with atoms below the surface plane (correct)
  • Atoms on the surface interact with atoms above and below the surface plane
  • What is the consequence of the unique interaction of surface atoms with atoms below the surface plane?

  • Deviations from the surface atomic positions in the bulk
  • Two types of changes in the bulk atomic positions (correct)
  • A single type of change in the surface atomic positions
  • No changes in the atomic positions on the surface
  • In which plane do the surface atoms of a crystal reside?

  • xy-plane (correct)
  • xz-plane
  • Any plane is possible
  • yz-plane
  • What is the characteristic of the interaction between surface atoms and atoms below the surface plane?

    <p>Anisotropic</p> Signup and view all the answers

    What is the implication of the difference in interaction between surface atoms and bulk atoms?

    <p>Surface atoms have unique positions different from the bulk</p> Signup and view all the answers

    What is the primary factor responsible for the distinct behavior of surface atoms in a crystal?

    <p>Atoms on the surface interacting with atoms below the surface plane</p> Signup and view all the answers

    Which of the following is a consequence of the interaction between surface atoms and atoms below the surface plane?

    <p>Deviations from the bulk atomic positions</p> Signup and view all the answers

    What is the key difference between the interactions of surface atoms and bulk atoms in a crystal?

    <p>Surface atoms interact with atoms below the surface plane but not above</p> Signup and view all the answers

    What is the characteristic of the surface atoms in a crystal that leads to changes in their atomic positions?

    <p>Atoms on the surface interacting with atoms below the surface plane</p> Signup and view all the answers

    What is the implication of the unique interaction between surface atoms and atoms below the surface plane in a crystal?

    <p>Deviations from the bulk atomic positions occur</p> Signup and view all the answers

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