What explains why insulators have different electrical properties from metals? A More valence electrons B Band gap structure C No difference D Fewer valence electrons

Q: Do metallic elements conduct electricity because they have a small band gap energy?

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Q: Calculate the maximum wavelength of radiation required to excite electrons between the valence and…

A: The band gap represents the energy required for electronic transitions, Energy of photon is 2.26 eV.…

Q: In a semiconductor, the bonding molecular orbitals that contain electrons are referred to as the…

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Q: Indicate which of the following statements are true with regard to semiconductors. (a) elemental…

A: a) is true, elemental semiconductor are made of metalloids.  b) is wrong, because semiconductor have…

Q: The band gap for the elemental semiconductor silicon is 1.11 eV. That energy corresponds to what…

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Q: What type of a material would have a small forbidden band gap ? alkaline earth metal metal…

A: The answer to the given question is as follows------- The forbidden band gap is the difference…

Q: Choose the options that would form a p-type semiconductor.  Choose all that would make a p-type…

A: When a trivalent element impurity (less valent) dopped with tetravalent (or more valent)…

Q: What type of atom is needed as a dopant in an n-type semiconductor? atoms that have more valence…

A: N-type semiconductor are the extrinsic semiconductor in which dopant atoms are added to the base…

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

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Q: Which solid would you expect to have the largest band gap?a. As(s)b. Sb(s)c. Bi(s)

A: Band gap: It is defined as the energy gap between conduction and valence bond, if the band gap is…

Q: GaP and GaAs are both used in LED (light-emitting diode) applications. i.The bandgap of GaP is 2.26…

A: We have the basic formula, Energy(∆E) = hcλ Here, given, Energy = 2.26 eV (GaP) and 1.43 eV (GaAs)

Q: The atomic weight, density, and atomic radius for the two hypothetical alloys are listed in the…

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Q: Explain why diamond is harder than graphite. Why is graphite an electrical conductor but diamond is…

A: We know that both diamond and graphite are made of carbon. However, diamond is harder than graphite…

Q: which case is the correct type of impurity semiconductors given? Ga joined Ge, As joined Ge, Si…

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Q: Explain why diamond is harder than graphite and why is graphite an electrical conduct but diamond is…

A: Carbon has two main allotropic forms - diamond and graphite. These both Allotropes contain Covalent…

Q: Which substance has the greatest band gap?a) silicon b) germaniumc) lead d) gold

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Q: band gap on insulator i understand the band gap difference between conductor, insulator, and…

A: From the given data we are going to answer why there is a large energy gap in insulators.

Q: The element in the periodic table that looks like a metal, is a poor thermal conductor, and acts as…

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Q: Discuss the need for a high-Tc superconductor.

A: High-Tc superconductor stands for high temperature superconductor. The materials that behave as a…

Q: Define a semiconductor? Describe the two main types of semiconductorswhen it is doped with(a) group…

A: Semiconductors can be defined as the solids having conductivity in between those of conductors and…

Q: Consider the following doping scenarios: I. Si doped with B II. Ge doped with P III. GaAs doped with…

A: Dear student I have given answer to your question in the image format

Q: What type of semiconductor is prepared by doping Ga into Si? A) p-type B) n-type C) intrinsic D)…

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Q: Calculate the maximum wavelength of radiation required to excite electrons between the valence and…

A: Given: The conversion of eV to joule is as follows,

Q: Draw the band structure for graphite (carbon) and explain types of band formed in graphite using…

A: Graphite: The layered structure of graphite is made up of rings of six carbon atoms organised in…

Q: Using the table for lonic Radii for Several Cations and Anions c. Cell edge length of ferrous oxide…

A: Given, Ferrous oxide has rock salt structure . density of ferrous oxide =5.75gcm3

Q: A semiconductor has wide energy gap and requires less energy to move an electron from the valence…

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Q: The structure of the unit cell when CaF, crystallizes is shown below: ... What is the arrangement of…

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Q: b) The periodic Table has specific units: Metallic, Semiconductor and Insulator. In your own…

A: This question is based on the periodic table and the different units : Metallic, Semiconductor and…

Q: (d) The figure below represents an FCC structure. Determine: i. The relationship between the lattice…

A: Face centred cubic structure can be defined as  the structure in which atoms are present at corners…

Q: Classify as n-type or p-type a semiconductor formed by doping (a) germanium with phosphorus, (b)…

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Q: What is the forbidden gap semiconductor? O a. 1 eV O b. 15 eV O c. 2 eV O d. no gap

A: 1) The forbidden energy band gap is the energy difference (in eV) between the top of the conduction…

Q: Lithium SiO2, similar to Diamond Germanium KCI **

A: Here we will discuss the electrical properties of conductors, insulators and semiconductors based on…

Q: Which statement explains why graphite is used as a lubricant? * O A All bonds between the atoms are…

A: Graphite is used as a lubricant. Give reason.

Q: Classify each of the following as a conductor, insulator, or semiconductor: (a) carbon (graphite);…

A: Conductors are those that allow the charge to pass through them while insulators don't allow the…

Q: Silicon carbide (SiC) is an example of what type of solid? molecular covalent network ionic…

A: We have to find out nature silicon carbide

Q: Silicon (Si) and germanium (Ge) can be used as semiconducting materials. The band gap between the…

A: Each metal or metalloid is capable of conducting current when the valence electrons of the atom can…

Q: Distinguish the gap between conduction band and valence band for metallic conductor and insulator.…

A: The conductivity of a material depends upon the gap between the valence band and conduction band.…

Q: Compare the crystal structure of diamond (C) and zinc blended (ZnS). What are the key similarities…

A: Similarities:  Both diamond and zinc blend have FCC lattice structure. Each carbon atom in diamond…

Q: Electrons in a semiconductor can be excited from the valence band to the conduction band through the…

A: In semiconductors, the gap between the valence band (VB), and the conduction band (CB), is small.…

Q: Consider the band diagrams below, which of them represents an n-type semi-conductor? A B C D Energy…

A: When a semiconductor is doped with an impurity of group 15 elements, then the number of electrons in…

Q: Write  few  lines on any  two types of   Metals  structure ( unit cells )  with    aid  of diagram

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Q: The band gap in gallium phosphide (GaP) is 2.3 electron-volts (1 eV= 1.6 * 10 -19 J). What is the…

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Q: Al is a metal, Si is a semiconductor, P is a nonmetal. Order them from lower to higher energy gap…

A: A metal is a material that conducts electricity, non-metal is a material that does not conducts…

Q: hypothetical alloy has a face centered cubic unil cell. Its density is 10.470 kg/m² and its atomic…

A: density = 10.470 kg/m3 atomic weight= 106.8 g/mole

Q: 5. Cadmium sulfide, CdS, is used as a photoconductor in light meters. The band gap is about 2.4 eV.…

A: Conduction band is collection of electronic orbital which an electron can occupy after some energy…

Q: Graphite has a layered structure, with each layer made up of six-membered rings of carbon fused with…

A: Materials which have free electron that can be delocalized can conduct electricity.

Q: Al is a metal, Si is a semiconductor, P is a nonmetal. Order them from lower to higher energy gap…

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