What is the trend in the size of the bandgap as you move down the column of the group 4A elements?

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…

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A: Given information,       Orthorhombic unit cell with edges of lengths 3.314, 4.376, and 10.48 Å

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Q: Consider the following dioxides of fifth-period elements: SnO2, TeO2, and XeO2. (a) Use their common…

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Q: How Band theory differentiate between semiconductors and semi materials?

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Q: For FCC structure, a). Calculate the ratio of the tetrahedral-site radius r t to the FCC-atom radius…

A:

Q: sketch 2D network structure of amorphous B2O3

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Q: Draw the following directions or planes in a single unit cell. (a.) [010] , (b.) (220) , (c.) (111),…

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Q: 20. A unit cell has the dimensions a = 4 A, b= 6 A, c = 8 A, x = ß = 90°, y = 120°. Determine: a)…

A:

Q: Distinguish  between the bond thos exist  In CsCl and SiC Crystals.

A: Chemical Bond: Chemical bonds are type of forces which hold two or more than two atoms to form a…

Q: Define the term antibonding?

A: The combination of two atomic orbitals results in the formation of molecular orbitals which are…

Q: >List three allotropes of crystalline carbon.

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Q: Consider band structure of a material with energies in the valance and conduction bands: E, = -JA² +…

A: I will the answers for finding bandgap and effective mass for holes and electrons

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A: As per the given structure of ZnS, the packing of S2- is FCC (face-centered cubic).  This form of…

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: A 21.64 g sample of a nonreactive metal is placed in a flask containing 12.00 mL of water; the final…

A:

Q: Calculate the number of molecular orbitals present in the valence band of a lithium crystal with a…

A: Given: Mass of lithium crystal = 2.52 g And we know that the molar mass of lithium = 6.941 g/mol

Q: In how many allotropic forms does arsenic exists?

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Q: How many octahedral voids are there in 1 mole of a compound havingcubic closed packed structure?

A: There are two types of voids present  a)Tetrahedral  b) Octahedral   CCP stands for cubic close…

Q: What is the trend in the size of the band gap as you move down the column of the group 4A elements?

A: Band-In molecular orbitals of an atom the set of closely discrete energy levels is called as band.…

Q: Which of the following structures is based on the cubic close-packing of cations?

A: Out the given compounds, CsCl is based on the cubic close-packing of cations. The Cs+ or Cl- ions…

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Q: 2- Sketch the following planes and directions within a cubic unit cell: a. [101] b. (011)

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Q: Which of the following doped semiconductors will be p-type and which will be n-type (i)Arsenic in…

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Q: Given Cs (262 pm), Tl (171 pm), and B (88 pm) with their noted atomic radii, which atom is most…

A: Interstitial impurity is always smaller in size as compared to host atom i.e Sn.

Q: In-band theory of bonding for solids, what is a band? What is the difference between the valence…

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Q: The semiconductor CdSe has a band gap of 1.74 eV. Whatwavelength of light would be emitted from an…

A: The semiconductor CdSe has a band gap of 1.74 eV. The wavelength of light that would be emitted from…

Q: What is the arrangement of the Ca2+ ions (white spheres)? A BCC в) FCC HCP D sc

A: Arrangement of the Ca2+ ions (white sphere) = ?

Q: Which substance do you expect to have the greatest latticeenergy: MgF2, CaF2, or ZrO2?

A: The lattice energy of the system depends upon the charge on cation and anion. Also, the lattice…

Q: Describe the formation of N-type semiconductor.

A: Kindly get the answer given below.

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: In-band theory of bonding for solids, what is a bandgap?

A: The band theory of bonding for solid signifies the quantum state of that electron present inside the…

Q: Explain how doping can increase the conductivity of a semiconductor.

A: Conductivity is due to the mobility of electrons; therefore, conductivity can be increased by…

Q: the theoretical density in g/cm^3

A: The required solution is as follows:

Q: In-band theory of bonding for solids, what is a bandgap? Howdoes the band gap differ in metals,…

A: Band gap refers to the distance between the valence band and conduction band. It represents the…