You have a single crystal of 100% pure gold. Identify which of the following defects you would expect to be present at room temperature.

Question

Free surface
Grain boundaries
Vacancies
Inclusions
Substitutional impurity atoms
Interstitial impurity atoms

Answer 1

Vacancies,
Grain boundaries,
Substitutional impurity atoms

Answer 2

Wrong answer is that up here.

Answer 3

Free Surface

Vacancies

Answer 4

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Answer 5

Free Surface
Vacancies