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Lattice Defects Quiz

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Questions and Answers

What is a vacancy in the context of lattice defects?

An impurity atom at the regular lattice position

An atom trapped in the interstitial point

An atom missing from a regular lattice position (correct)

A region of localized lattice distortion

What is an interstitialcy in the context of lattice defects?

An atom missing from a regular lattice position

An atom trapped in the interstitial point (correct)

A pair of cation and anion missing from the lattice

A region of localized lattice distortion

Which type of defect occurs when an anion is displaced from a regular site to another site?

Vacancy

Schottky defect

Frenkel defect (correct)

Interstitialcy

What characterizes a Schottky defect in a crystal lattice?

<p>A pair of cation and anion missing</p> Signup and view all the answers

What is a dislocation in the context of lattice defects?

<p>The region of localized lattice distortion which separates the slipped and unslipped portion of the crystal</p> Signup and view all the answers

Study Notes

Lattice Defects

A vacancy is a type of lattice defect where an atom or ion is missing from its regular lattice site.
An interstitialcy is a type of lattice defect where an atom or ion occupies a position between regular lattice sites.
A Frenkel defect occurs when an anion is displaced from a regular site to an interstitial site, resulting in a vacancy and an interstitialcy.

Schottky Defects

A Schottky defect is characterized by a pair of vacancies, one of each type of ion (anion and cation), which maintain the electrical neutrality of the crystal lattice.

Dislocations

A dislocation is a type of lattice defect that occurs when there is a linear defect in the crystal lattice, resulting in a disruption of the regular arrangement of atoms or ions.

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Description

Test your knowledge of lattice defects with this quiz. Learn about point defects, including vacancies and interstitialcies, as well as other types of defects like line, surface, and volume defects.