The bonds that hold semiconductor atoms together in a crystal are called trivalent bonds. Select one: O True False

Q: Predict the effect (if any) of an increase in temperature on the electrical conductivity of (a) a…

A: Conductor: It passes the current. There is no energy space between valence band and conduction…

Q: snip

A: The given problem can be solved by using Bragg's equation given below as; 2dSinθ = nλ…

Q: The band diagram of Copper is: Select one:

A:

Q: /hich of the following is a property of a molecule and not of the bulk substance ? (Circle one) a.…

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Q: The atomic packing factor of a metal is 0.74. The density of the material is 8.97 g/cm and A = 58.69…

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Q: Quartz glass is the only industrially utilized single component glass. Which one of the following is…

A: Quartz is one of the most useful natural materials. It is very durable and is chemically inert in…

Q: Indicate whether each statement is true or false:(a) Substitutional alloys tend to be more ductile…

A: a) true , substtiutional alloys tend to be more ductile.   b) false, there is huge atomic radius…

Q: The missing of atoms from the lattice sites is called : a) Vacancy defects, B) interstitial defects,…

A: The lacking or missing of atoms or ions in any crystal structure or lattice is called solid defect.…

Q: 1. The copolymer with a (mer) of periodically arranged atoms is: b) random a) alternating e) block…

A: 1) The copolymer with a mer of periodically arranged atoms is block copolymers.

Q: (a) What molecular features make a polymer flexible? (b) Ifyou cross-link a polymer, is it more…

A: a. The intermolecular attractions between the polymeric chains can be hydrogen bonding, dispersion…

Q: Calculate the packing efficiency and density of diamond.

A: This question is from solid state chemistry where we are asked to find a)packing efficiency of…

Q: Melting Pt. (°C) Boiling Pt. (°C) Substance Appearance Conducts as Conducts as solid liquid…

A:

Q: (a) Draw a picture that represents a crystalline solid at theatomic level. (b) Now draw a picture…

A: Please find below the pic of both the types of solid.

Q: 1. The copolymer with a (mer) of periodically arranged atoms is: a) alternating b) random c) block…

A: Answers- 1) The copolymer with a (mer) of periodically arranged atoms is - a) alternating 2)One of…

Q: Desricbe the Heat conductibility And Brittleness of metallic crystals, ionic crystals, molecular…

A: Metallic crystal-Metallic crystals are surrounded by a large no. of delocalized valence electrons .…

Q: Choose a false statement/s? A. Diamond is a covalent crystal. B. The size of the unit cell of Li and…

A: A. The first statement is true as the diamond is an example of covalent crystal, as in such crystals…

Q: Line defects or dislocations are abrupt change in atomic order along a line. A dislocation is the…

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Q: The element selenium (Se) has a phase that behaves as a semiconductor.  What element could you dope…

A: In this question, we will Identify which Element will formed n-type semiconductor.  How we can…

Q: 5. Calculate the d-spacing of (111) plane in Cu. Copper has a fcc lattice structure and has an…

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Q: Liquid crystals have unusual optical properties because they can orientation. with an electric field…

A: The solution is given below-

Q: Transition metals in their ores are colored a. True b. False   Which of the following substances…

A: We will answer the following questions with explanation.

Q: please answer letter b. Please help. Tysm❤️ B. Choose one type of solid (metallic crystals, ionic…

A: The solids are one of the three states of matter and the presence of constituent particles in close…

Q: Identify solid as molecular, ionic, or atomic.Ni(s)

A: Molecular solids are those in which atoms or molecules are held together by comparably weaker…

Q: Will ZnSe have a larger or smaller band gap than ZnS?

A: Both ZnSe and ZnS are compound semiconductors. As they both have Zn as one of the element, the…

Q: a- What is the difference between the following: 1- Amorphous and crystalline ceramic. 2- Ceramic…

A: on the basis of arrangements Solid  can be divided into mainly two types , crystalline solid and…

Q: 4. List types of crystal imperfections, give their dimensionality and examples.

A: The crystalline nature of the substances acquires their constituent particles/atoms in the proper…

Q: Identify solid as molecular, ionic, or atomic. I2(s)

A: Solid is also one of the four primary states of the matter. The molecules in the solid are tightly…

Q: Which of the following elements when added (as a dopant) to Si would make an n-type semiconductor?…

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Q: If you know that the iron crystal is of a cubic type, centered faces (a = 0.29 nm), calculate the…

A:

Q: There magnetic quantum number determines the .movement of the electrons True False is branched…

A: 1. The magnetic quantum number of an electron is one of the four quantum numbers that state the…

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: What is a key property of crystals?     A   Malleable   B     Solid     C   Brittle   D…

A: Protein crystallization is the process of formation of a regular array of individual protein…

Q: true or false:

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Q: Which of the following is CORRECTLY matched? Select one: O a. CO₂: molecular solid b. Platinum:…

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Q: Polymorphism can exist in any crystalline material, not just molecular solids. True or false?…

A: Crystalline solids are those where a long-range order is present in the arrangement of constituent…

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: Classify cach substance as an ionic solid, a molecular solid, a metallic solid, or a polymer. lonic…

A: Shovel blade - mettalic solid  Shovel blades are usually made of metal ,  steel and  are very…

Q: Identification Type 1. Agroup of three numbers that indicate the orientation of a plane or set of…

A: Since you have posted multiple questions as well as multiple sub-parts, the first three sub-parts of…

Q: As water cools, instead of moving closer together, the molecules hold each other at arm's length…

A: Since ice has less density than liquid water.

Q: 9. List and describe two different types of solid state defects that can occur in crystals. Use…

A: Defects are the irregularities or imperfections in the arrangement of particles in a crystal…

Q: 2. A fine white powder has a melting point of 155°C (relatively low). It does not dissolve in water…

A: Based on the constituent particles present in crystal lattice , crystalline solids can be classified…

Q: a crystaline solid lacks a definite repeating pattern true or false

A: Crystalline solid has a long range order.