Give answers of the following. a. Which allotropic forms of carbon are conductor and which are non-conductors and why.  b. Why diamond is hard while graphite is soft.

Q: Write a comparison between : 1- Metal with ceramic 2- Metal with polymer 3- Metal with nanomaterial

A: The differences are as follows:

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: Which statement correctly describes a difference betweengraphene and graphite?(a) Graphene is a…

A: a. Is statement is wrong because graphene is not a molecule  b. This statement stands right because…

Q: Explain why polycrystalline metals are stronger than their single crystal counterparts.

A: Defination of polycrystalline metal: Polycrystalline metals  comprise of grains with different…

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

A:

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: Blue LEDS are made from In,Ga1-N semiconductors with a band gap in eV given by E, = 3.40 – 3.75x +…

A:

Q: (a)What are intrinsic semiconductors? Give an example.(b) What is the distance between Na+and Cl–…

A: Semiconductors are those substances which have conductivities in between the metals and nonmetals.…

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

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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: 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: A common feature in high-temperature ceramic superconductors is a Cu-0 sheet that serves as a…

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Q: Describe the bonding in calcium oxide, CaO, in terms of bands composed of Ca and O atomic orbitals.…

A: SOLUTION: Step 1: The Calcium ion is an Alkaline earth metal and give up the 2s orbital electrons…

Q: An AX ceramic compound has an HCP crystal structure. If the radii of the A and X ions are 0.12 and…

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Q: 2. Shown below is a chart of the carrier concentration in three intrinsic semiconductors (Si, Ge,…

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

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Q: 2. Compare and contrast band theory associated with metals, insulator and semiconductors with…

A: Interpretation-  To compare and contrast band theory associated with metals, insulator and…

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: h) Why did the steelworkers introduce the carbon into the metal? What role does it play and how does…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

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: 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: 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: Identify the structure of each of the two-unit cells shown in Problem 47 as the rock salt structure,…

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Q: An AX ceramic compound has an HCP crystal structure. If the radii of the A and X ions are 0.114 and…

A: We need to find density of material.

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: For each of the following pairs of semiconductors, pick which one would have the larger bandgap.…

A: SEMICONDUCTORS: Certain materials which has a conductivity which lies between nonconductors and…

Q: Why composite biomaterials are preferred over ceramics, explain with examples.

A: Being able to use artificial intelligence to identify and automatically respond to data breaches is…

Q: For each of the following pairs of semiconductors, whichone will have the larger band gap: (a) InP…

A: Since the band gap is directly proportional to the electronegativity difference of the atoms Hence…

Q: The nitride ceramics AIN, GaN, and InN are all semiconductors used in the microelectronics industry.…

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Q: An element with density 6.8 g cm-³, occurs in bcc structure with cell edge length equal to 290 pm.…

A: The expression for density (d) is given below: For BCC,  n = 2a = 290 pm = 290 × 10−10 cmd = 6.8 g…

Q: An ideal quantum dot for use in TVs does not contain anycadmium due to concerns about disposal. One…

A: The InP has the ZnS type structure, that is fcc, hence no. of ZnS in one unit cell will be 4 (i.e.…

Q: How are metals used as semiconductors refined? What is the principle of the method used?

A: The metallic compounds which are found in nature, called as minerals whereas the minerals which can…

Q: ) Explain the band structure of an electrical conductor (metal), a semiconductor, and an insulator…

A: Hello. Since your question has multiple parts, we will solve the first question for you. If you want…

Q: An ideal quantum dot for use in TVs does not contain anycadmium due to concerns about disposal. One…

A: Since the InP has the ZnS type structure, that is fcc, hence no. of ZnS in one unit cell will be 4…

Q: The band gap of gallium phosphide is 2.26 eV, which makes it appropriate for producing yellow LEDs,…

A: Given: The band gap of gallium phosphide is 2.26 eV, which makes it appropriate for producing yellow…

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: (a) Why electrical conductivity of the semiconductor increases with increase in temperature?…

A: A) The electrical conductivity of semiconductors increases with rise in temperature as with rise in…

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

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Q: 20. Solid-state chemical sensors are manufactured using semiconductors such as Si and Ge. Doping…

A: Note: Since you have asked multiple questions and not specified, we will solve the first three…

Q: Why is graphite soft lubricant and good conductor of electricity?

A: Graphite is a non metal having two dimensional sheet like structure where each carbon atom uses sp2…

Q: Which liquid samples: Heated or unheated magma (=honey) has the lowest viscosity and the highest…

A: Viscosity is inversely proportional to fluidity. It is the ability of a liquid to resist flow. Magma…

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

A: Solution -

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: How many lattice atoms surround a tetrahedral hole and an octahedral hole in a closest-packed…

A: Lattice atoms in tetrahedral holes:Tetrahedral holes in a closest packed structure represent that…

Group 15 elements

The elements of group 15 are phosphorus, nitrogen, bismuth antimony, and arsenic. The most abundant element which is present in the air is nitrogen and the percentage of nitrogen present in the air is 78%. In the free state, the elemental nitrogen is present as diatomic gas (N2). In the organic matter obtained from plants and animals, phosphorus is the dominant element present. In nucleic acids, phosphate groups are present. Phosphates are also found in teeth and bones. The other elements arsenic, bismuth, and antimony are found as sulfides. Arsenopyrite, bismuth glance, and stibnite are examples of sulfides of arsenic, bismuth, and antimony respectively.