Explain frenkel defect with suitable example
WebVDOMDHTMLtml> Explain the following terms with suitable examples (ii)Frenkel defect 1.23 Explain the following terms with suitable examples (ii)Frenkel defect Browse by Stream Engineering and Architecture Exams JEE Main 2024 JEE Advanced 2024 MET 2024 VITEEE 2024 AEEE 2024 GATE 2024 WebA Frenkel defect is a type of point defect in crystalline solids, named after its discoverer Yakov Frenkel. The defect forms when an atom or smaller ion (usually cation) leaves its place in the lattice, creating a vacancy and becomes an interstitial by lodging in …
Explain frenkel defect with suitable example
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WebFrenkel defect This defect is shown by those ionic solids in which there is a large difference in the size of ions For exampleZnSAgClAgBrAgl The cations such as Zn2or … WebJul 26, 2024 · (ii) Frenkel defect: This defect arises when some of the ions in the lattice occupy intersitial leaving lattice sties vacant. this defect is generally found in ionic crystals where anion is much larger in size than the cation e.g., AgBr,ZnS etc Due to this defect density does not chagne, electrical conductivity increases to a small extent and ...
WebFrenkel defects are exhibited in ionic solids with a large size difference between the anion and cation (with the cation usually smaller due to an increased effective nuclear charge) … WebWhen the smaller ion (usually cation) is dislocated from its normal site to an interstitial site, Frenkel defect is created. It creates a vacancy defect as well as an interstitial defect. Frenkel defect is also known as dislocation defect. Ionic solids such as AgCl, AgBr, AgI, and ZnS show this type of defect.
WebSome examples of solids which exhibit Frenkel defects: zinc sulfide, silver (I) chloride, silver (I) bromide (also shows Schottky defects), silver (I) iodide. These are due to the comparatively smaller size of and ions. For example, … WebApr 11, 2024 · The point defect which occurs when cation displaces to interstitial voids is called Frenkel defect. In this defect cation gets displaced as it is smaller in size than anion. AgI, CaF 2, NaCl exhibit the Frenkel defect. Frenkel defect in NaCl is shown below – (Image will be updated soon) This defect does not change the density of the crystal.
WebJul 24, 2024 · Answer : (i) Schottky defect: When an atom or ion is missing from its normal site, a lattice vacancy (Schottky defect) is created. Equal number of cations and anions …
WebExplain the following terms with suitable examples: (i) Schottky defect (ii) Frenkel defect (iii) Interstitials and (iv) F-centers Expert Answer 1. Schottky defect Some atoms or ions are missing from their normal lattice sites. Unoc View the full answer Students also viewed these accounting questions biomark healthWebThe Frenkel defect involves a single ion, which is displaced from its normal lattice point and shifts to a nearby interstice, or space, between atoms in the lattice. In the Schottky defect, two ions of opposite sign leave the lattice. biomark research ucWeb(ii) AgBr – AgBr shows Frenkel defects and Schottky defects both. Question: 1.21 - Explain how vacancies are introduced in an ionic solid when a cation of higher valence is added as an impurity in it. ... Explain with the help of a suitable example. Answer: Metal excess defects are seen because of missing of anions from regular site leaving a ... biomark production departmentWebPerson as author : Pontier, L. In : Methodology of plant eco-physiology: proceedings of the Montpellier Symposium, p. 77-82, illus. Language : French Year of publication : 1965. book part. METHODOLOGY OF PLANT ECO-PHYSIOLOGY Proceedings of the Montpellier Symposium Edited by F. E. ECKARDT MÉTHODOLOGIE DE L'ÉCO- PHYSIOLOGIE … biomark oncologyWebH.W 3 chem 444 1. Explain the following terms with suitable examples. (1) Schottky defect, (ii) Frenkel defect, (iii) Interstitials, (iv) F- centres 2. Explain the following with … biomark researchWebFrenkel defect: It arises when an ion, usually cation, leaves its normal site and occupies and interstitial site. This defect is usually observed in ionic compounds having low co-ordination number, and crystals with anions are much larger in size than the cations. biomark productsWebFor example, in the crystal lattice of NaCl, equal number of cations and anions are missing to maintain electrical neutrality. (ii) Frenkel defect. An ion is missing from its normal … biomarkt aglassing facebook