Which of these band diagrams is consistent with diamond being an electrical insulator? Ge is a semiconductor. If half of the Ge atoms of a sample of Ge are replaced with Ga atoms, with what element should the other half of the Ga atoms be replaced in order for this new compound to be isoelectronic with Ge?

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: Sketch the band structure of a Li AND a Si crystal. (ii) How would you expect the electrical…

A: According to band theory, a substance that conducts electricity is able to jump its electrons from…

Q: Account for the relative band gap energies of semiconductors interms of periodic trends?

A:

Q: Account for the relative bandgap energies of semiconductors interms of periodic trends?

A: Semiconductors are materials which have a conductivity between conductors (generally metals) and…

Q: What is the trend in the size of the bandgap 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: By drawing a hexagonally close-packed layer of atoms in two dimensions, explain why there are two…

A: Hexagonal close-packed layer of atoms refers to the layers of packed atoms such that the atoms…

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: Carbon forms a number of allotropes, two of which are graphite and diamond. Silicon has a diamond…

A: Graphite is an allotrope of carbon which is made up of hexagonal carbon rings in which each carbon…

Q: 4 eV which correspon mposition of GaN that-

A: Given as, band gap energy= 3.4 eV, wavelength= 365 nm.

Q: What is the difference between Asthenosphere and Lithosphere? O Lithosphere is rigid and…

A: Earth chemistry

Q: . Explain the relationship between the number of bonds that can be formed by a typical atom in a…

A: The structure of the substance is affected by number of bonds in a compound, when the bonds formed…

Q: There are four different types of band structures at 0 K. Among them, two are typified in metals,…

A: The solution is given below -

Q: A compound of Sn, Cd and P are mixed together to synthesize a semiconductor. The phosphorous atoms…

A: we have to  determine the formula of the compound

Q: How does the doping increase the conductivity of semiconductors?

A: Conductivity of semiconductors:When a certain amount of suitable impurity or doping is added, the…

Q: Which groups of elements have the best and which the poorest electrical conductivities? Explain.

A: For an element to conduct electricity, it must have free electron to move around.

Q: closest-packed sulfide ions with zinc(II) ions occupying all of the tetrahedral interstices…

A:

Q: 19. One of the polymorphs of ZrO2 is shown below. Identify the lattice and basis for this structure?…

A: Lattice + Basis gives the unit cellLattice is how to repeat means the framework of the unit cell and…

Q: NaCl has a: a) Cubic close

A: We have to tell which type of packing structure does NaCl has

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: Define the term, Band-Gap?

A: Electrons are present in the orbits around the nucleus. On coming together of two charges together…

Q: Describe the singularity of the band in 'K, K', which is graphene's 'Brillouin Zone edge'. Please…

A: Brillouin zone is uniquely defined primitive cell in reciprocal space. In the same way the Bravais…

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: The energy gap of GaAs is 1.4 eV, a lot higher than that of Ge, the element between them in the…

A: The objective of the question is to identify the reasons why  is having a higher band gap than .

Q: Magnitite ( Fe3O4) is a naturally occurring ferrimagnetic  material  with an inverse spinel…

A: Compounds with normal spinel structure are ZnFe2O4, MgAl2O4, CoAl2O4 where A atoms occupy the…

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

A:

Q: 9. How would you expect the mechanical properties of a metal with an FCC structure to differ from…

A: Step 1: The mechanical properties of metals with Face-Centered Cubic (FCC) and Body-Centered Cubic…

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: se molecular orbital band diagrams to explain why metals are good conductors but semiconductors are…

A: Introduction: We have to explain metals are good conductors but semiconductors are not. Molecular…

Q: What are the Closest Packed Structures?

A: A closed-packedlayer, where each sphere is near to other six spheres in same plane ,the ordergives…

Q: 30. Use the hybridizations and structures of graphite and diamond to explain why graphite conducts…

A: If Sp2 hybridization present then compound is planer ..if sp3 hybridization present then compound is…

Q: Explain how metallic conductors, semiconductors, and insulators are identified and explain their…

A:

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: The structure of a unit cell of an oxide of niobium is depicted here. Niobiums are dark and oxygens…

A: A cube has 8 corners, 6 faces and 12 edges.An atom that is located at the corner of a unit cell is…