Which groups of elements have the best and which the poorest electrical conductivities? Explain.

Q: 03. How can we determine of the band-gap of gemanium from electrical measurements?

A: Band gap of semiconductor like germanium can be determined by the study of the Variation of its…

Q: Use the figure of band structures to explain why the conductivity of pure metals decreases when…

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Q: Tin is semiconductor La O F.b

A: Is Tin (Sn) a semiconductor.

Q: Account for the relative bandgap energies of semiconductors interms of periodic trends?

A: Semiconductors are materials which have a conductivity between conductors (generally metals) and…

Q: 2. What is the coordination number structure formed by most semiconductors and electronic materials…

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Q: The maximum wavelength of light that a certain silicon photocell can detect is 1.11 μm. (a) What is…

A: The energy difference between the top valence band and bottom of conduction band in terms of…

Q: Discuss the Following: Why although a non-metal, graphite is often used as an electrode material?…

A: Doping is the process of addition of metal that causes enhancement in conducting properties of the…

Q: for what purpose electrometallurgy is used for?

A: Electrometallurgy involves electrolysis of elements.  Reactive metals such as aluminium and metals…

Q: If Na+ ions were to substitute for magnesium ions in MgO, in order to preserve electroneutrality,…

A: Impurity defects are produced in the MgO crystal. Two Na+ ions replaced one Mg2+ ion for…

Q: How will you operationally define chemical bonding when subjected to its conductivity?

A: A question based on chemical bonding, which is to be accomplished.

Q: Explain and elaborate in 10 sentences the reason why non crystalline materials does not exhibit…

A: Allotrope of the perticular element  is formed due to different arrangements or different…

Q: Why are metals generally lustrous?

A: The general definition of the metals can be done as the elements that have tendency to lose…

Q: Explain what happens when a pure semiconductor made up of Silicon is doped with an Indium atom…

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Q: (a) Deduce the number of 3d electrons in the following ions Fe3+ , Cu2+. (b) Why do transition…

A: Since you have asked multiple questions, we are solving first questions for you. For remaining…

Q: ite form of iron has fcc crystal lattice structure,whereas its alpha form has bcc crystal lattice…

A: For a Face-Centred Cubic lattice:  4r=2a where r is the radius of the atom and a is the edge length.…

Q: How does the doping increase the conductivity of semiconductors?

A: Conductivity of semiconductors:When a certain amount of suitable impurity or doping is added, the…

Q: K/U Under what two conditions car an ionic compound conduct an electric curren ?

A: Ionic compounds : These are the compounds which are made up of ions in which are positively charged…

Q: What is the difference in energy between the valence band and conduction band of electrical…

A: Insulators have large energy gapSemi conductors have somewhat less energy gap than insulators…

Q: calculate the linear electron density of gallium arsenide in with is 10 nm the sub band values of…

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Q: Construct a vis-à-vis comparison of different alloyed materials. Cite the advantages, disadvantages,…

A: Alloys are elements which are mixture of different metals or metal with non-metal . It alloys to…

Q: What is semi-conductor?

A: Conductors are those substances which allow the flow of heat and electricity through them while…

Q: Explain the process of making an n -type and p -type semiconductor materials

A: p -type semiconductor : When a semiconductor ( Ge or Si ) is doped with electron deficient impurity…

Q: In how many allotropic forms does arsenic exists?

A: Allotropes of an element are forms of the same element with different physical and chemical…

Q: Unlike metals, semiconductors increase their conductivityas you heat them (up to a point). Suggest…

A: The material that have electrical conductivity in between conductor and insulator is known as…

Q: Why did the compounds acted differently when conductivity was tested?

A: Conductivity is basically the ability of movement of electricity or heat throughout the chemical…

Q: Adding small quantities of boron may increase the electrical conductivity of antimony. With the aid…

A: Antimony is symbolised as Sb is a gr-15 element. It's valence shell electronic configuration is…

Q: transition elements have tendency to form many alloys why ?

A: In the periodic table, d-block elements are known as transition elements.  In d-block, all elements…

Q: Rank the following in order of increasing electrical con-ductivity, and explain your ranking: Po, S,…

A: The given elements have to arranged in the order of increasing electrical conductivity, The given…

Q: Two solids are shown below. One is a semiconductor andone is an insulator. Which one is which?…

A: Since in insulators, the gap between the conduction band and valence band is very high. Hence there…

Q: Crystalline: Diamond ; ____????____ : Graphite

A: Given: Crystalline: Diamond ; ____????____ : Graphite

Q: PdB0.15 is a which type alloy

A: In substitutional alloy some of the atoms composing the metallic crystals aresubstituted with atoms…

Q: What are semi-conductors?

A: Conductors are those substances which allow heat or electricity to pass through it while insulators…

Q: Which allotropic form of carbon are conductor and which are non conductor's and why?

A: Allotropy is defined as the property of some chemical elements to exist in two or more different…

Q: Write equations that show the processes that describe thefirst, second, and third ionization…

A: a. The equation for the first ionization energy process is Al(g)-----------> Al+(g) + e- The…

Q: explain the properties of zinc? zinc can conduct current or not?

A: Zinc is a blue-grey, metallic element with the symbol Zn and atomic number 30. it has a blue-silvery…

Q: 3) What is the difference in energy between the valence band and conduction band of electrical…

A: Conduction band is the empty band whereas valence band is the filled electronic band. Valence band…

Q: what is The

A: Nanomaterials are chemical substances having dimension of 1-100 nm. They are by-products of…

Q: Give answers of the following. a. Which allotropic forms of carbon are conductor and which are…

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Q: How do some pairs of metals form alloys with structures that depend on the relative composition of…

A: An alloy is a metallic substance composed of a metal with at least one other metal metal or…

Q: What are the main differences between Diamagnetic and Paramagnetic materials?

A: Diagmagnetic substances have zero unpaired electron and paramagnetic materials contain unpaired…

Q: Titanium Ruthenium Property Electron configuration of element [Ar]4s23d [Kr]5s²4d6 2 Oxidation state…

A: In semiconductors and insulators, electrons are confined to a number of bands of energy, and…

Q: Which of these molecular fragments would you expect tobe more likely to give rise to electrical…

A: From the given molecular fragments which gives rise to electrical conductivity has to be given.

Q: The general structure of metal organic frameworks is very flexible. By referring to metal clusters…

A: Metal organic frameworks (MOFs) are crystalline and often porous. These frameworks contain an array…