What is the main component of glass?a) Al2O3 b) SiO2 c) CaF2 d) SiC

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

A: A semiconductor is a solid substance that possesses conductivity in the range between an insulator…

Q: Classify each of the following as a component of a silicate ceramic, an oxide ceramic, or a nonoxide…

A: a) B4C = This is a Non-oxide silicate.

Q: The forces that fold the structures of ceramics together are ionic interactions O covalent bonds…

A: In an ionic bond, one of the atoms gives electrons to the other atom ,  thus becoming positively…

Q: What is the definition of a ceramic? What are the three categories of ceramics?

A:

Q: What is the difference between the hardening process of Portland cement and the hardening process of…

A: Portland cement is a powdered mixture, and its hardening process is different from that of clays.…

Q: Explain the terms : (a) Intrinsic semiconductor (b) Extrinsic semiconductor.

A: Intrinsic semiconductor: Naturally occurring property of pure material, the number of electrons in…

Q: List the raw materials for making glass whilst stating their importance in glass making?

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Q: explain why graphite is a good solid lubricant

A: Why graphite is a good solid lubricant ?

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

A:

Q: 17. Which of the following is not true for diamond structure? Each carbom atom is sp3 hybridised…

A: The incorrect statement about diamond has to be given,

Q: Like most transition metals, tantalum (Ta) exhibits several oxidation states. Give the formula of…

A: Introduction: The structure in which atoms, ions or molecules are arranged in a particular repeating…

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: Classify each of the following as a conductor, insulator, or semiconductor: (a) phosphorus; (b)…

A: The given element has to be classified as conductor, insulator, or semiconductor.

Q: List the major classes of minerals and discuss the main chemical characteristic of each class.

A: Minerals are classified based on their chemical constitution. Mineral resources are finite and…

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: Which element produces a p-type semiconductor when doped into silicon?a) Ge b) Asc) Ga d) Sb

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Q: Stainless steel (80.6% Fe, 0.4% C, 18% Cr & 1% Ni) is an example of what type of alloy? interstitial…

A: An alloy is defined as a metallic compound which is made up of two or more elements which can be a…

Q: 5- Which of the following statement is not a property of metal glasses a. Poor thermal conducting b.…

A: The ability to conduct heat is measured by thermal conductivity. The degree of magnetization of a…

Q: * .Refractories are of the . ceramic types ..... .... advanced traditional Electrical conductivity…

A:

Q: Why do we prefer to coat metals with ceramics? What kind of additional property would a ceramic…

A: Introduction: Metal coatings are coatings that are applied to metal in order to protect the metal…

Q: What are the three categories of ceramics?

A: The ceramic is a material formed by metallic or non-metallic solids submitted to thermal treatments.…

Q: Describe the effect compression testing have on thermal, electrical and physical properties of…

A: Silicon Nitride (Si3 N4 ) is one of the hardest materials used in ceramics. It has a hardness of 8.3…

Q: What is the definition of a ceramic?

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Q: Sketch a diagram to illustrate the band structure of diamond, assuming no defects

A: The carbon atoms in diamond undergo hybridization and each carbon atom forms four sigma bonds with…

Q: 4. Briefly discuss how the different types of doping (n-type and p-type) increases the conductivity…

A: Solution:       A semiconductor is a type of material that conducts electricity but not all…

Q: For a ceramic compound, what are the two characteristics of the component ions that determine the…

A: The smallest unit which on repetition gives a crystal lattice is named as a unit cell. The net atoms…

Q: 1. Define sintering and glazing as applied in ceramics.

A: As per our guidelines I can answer only first question as you have posted multiple questions.

Q: Q: sintering means:   a.Shock cooling of molten glass to make frits. b.The molecular bonding of…

A: Sintering is the process of compacting and forming a solid mass of material by heat or pressure…

Q: What is the difference between the hardening process of Portland ce-ment and the hardening process…

A: The major components of Portland cement include Silica, SiO2 and limestone, CaCO3. It also consists…

Q: Why are impurities added to silicon dioxide in the glass making process? To increase mechanical…

A: Impurities like boric oxide , sodium oxide and aluminium are used while making the glass

Q: What are the name and formula of the compound commonly used in the manufacture of glass to reduce…

A: Boron is a 13th group representative element lying in the second period of the periodic table.  It…

Q: Steel is an example of interstitial alloy .A ionic solid .B molecular solid.C substitutional alloy.D…

A: Alloy is a compound made up of combining two or more metallic elements. Steel is an alloy made up of…

Q: Which part in the figure can be a grating or prism? O A O B OD

A: Instruments for analyzing light and for determining the identity and structure of materials that…

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: 9. Which of the following statements are correct for ceramic materials? i. They are inorganic…

A: 9.Ceramic materials are inorganic materials consisting of a metal/semimetal and a non metal.…

Q: Q3:- What are the types of defects in crystalline structure? Explain with example and with any kind…

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Q: Silicones are classified as O a. Elastomers O b. Cast iron O c. Thermoplastics O d. Ceramics

A: Silicones is synthetic elastomer that show viscosity and elasticity.

Q: Ceramic O Polymer Composite O Metal

A: What is given in the picture and the year 1800's is the start of what ? Answer is given below.

Q: material is a common oxide ceramic?a) N2O b) Al2O3 c) Fe2O3 d) CuO

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Q: 4. Compare and contrast SC, BCC, FCC and HCP in terms of coordination number, number of atoms per…

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Q: As the degree of vitrification of clay-based products increases, which of the following also…

A: In the formation of liquid glass, this chemical reaction takes place which is when clay and…

Q: List the major and minor components of Portland cement. What is the difference between the hardening…

A: Portland cement is a powdered mixture, and its hardening process is different from that of clays.…

Q: 3.15 The atomic weight, density, and atomic radius for O three hypothetical alloys are listed in the…

A: Solution -

Group 14 Elements

The following elements come under group 14 of the periodic table.