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Why does AgBr show both Frenkel and Schottky defects?
The radius ratio for AgBr is intermediate. Thus it shows both frenkel and schottky defects. The major defect in AgBr is the Frenkel defect. It has a rocksalt structure i.e. CCP lattice of of Br with atoms of Ag occupying all octahedral holes.Ag moves from octahedral to tetrahedral sites causing only cations to precipitate. Schottky defect arise due to missing of ions from their lacttice point and frenkel arise when the mmissing ions occupy interstitial sites. in AgBr, ag+ ion is small in size and when removed from lacttice point they can occupy interstitial site and therefore show both frenkel and schottky defect. SCHOTTKY Defect in AgBr is exhibited due to precipitation of both Cations and Anions.
Why AgBr shows both frenkel and schottky defect?
AgBr can exhibit both Frenkel and Schottky defects due to the presence of both cation (Ag+) and anion (Br-) vacancies in its crystal structure. Frenkel defect occurs when a cation occupies an interstitial site, while a Schottky defect involves the simultaneous absence of a cation and anion from their respective lattice sites. The relative sizes of the cation and anion in AgBr make both types of defects possible.
Why did they use chemicals and glass plates in early photography?
until celluloid was invented Glass plates were used because it was the only way to suspend the emulsion evenly and allowed light to pass through. It was easier to handle. Some glass plates were large and were put into contact with paper to create a positive image. Chemistry was used to convert the silver halides in the emulsion to visible black metallic silver halides. When light was shone through the glass the black metallic silver halides stopped the light and the paper was exposed where the light pass by the halides. This caused the material being exposed to show a positive image.
What is the ionic equation between halides and silver nitrate?
The ionic equation between halides and silver nitrate involves the cation from silver nitrate combining with the anion from the halide compound to form a precipitate. For example, with chloride ions, Ag^+ from silver nitrate reacts with Cl^- from the chloride compound to form solid silver chloride (AgCl) precipitate. The net ionic equation would show the formation of the silver halide precipitate.
Why primary alkyl halides show sn2 mechanism?
Primary alkyl halides favor SN2 mechanisms because they have less steric hindrance compared to secondary or tertiary alkyl halides. The SN2 mechanism involves a single-step backside attack of the nucleophile on the electrophilic carbon, requiring good nucleophile and leaving group properties. Additionally, primary alkyl halides have better leaving groups, such as halides, which further favor the SN2 reaction pathway.
What movie and television projects has Tracy Frenkel been in?
Tracy Frenkel has: Played Briggio (the hitman) in "Things Change" in 1988. Played Bobbie in "Dead Air" in 1997. Played Rocco Petrone in "From the Earth to the Moon" in 1998. Played Maxwell in "The Falkland Man" in 2001. Played Show Producer in "The Bros." in 2007.
Who burns the man in 'Phantom of the Opera'?
No one. It was a birth defect. That's why his mother gave him to the Freak Show.
Can you show a video of how to get silver and blaze?
No
What was the name of the saloon in the TV show Bonanza?
Silver Dollar Saloon
How do you know how much silver is in an item?
You show it to an expert.
In soul silver what else do you need four luiga to show?
you need the tidal bell and the silver wing
Can you show me a picture of a 1880 silver dollar?
See the related link below for a picture of the 1880 silver dollar.
