How many Do atoms are in the sample?

Q: A materials engineer needs to have an n-type semiconductor made from silicon. Which atoms might be…

A: The N type semiconductor has electrons as majority carriers and holes as minority carriers. It is…

Q: Q2) Calculate the density of copper, whose building unit is (FCC) type, the length of the edge of…

A: We need to calculate the density of copper, given that the building unit is FCC type, length of the…

Q: 2. Determine the crystal structure for the following: (a) a metal with a, = 4.9489 Å, r = 1.75 Å and…

A:

Q: 1. What is the difference between a conductor and a semiconductor? 2. Which element is used to…

A: Transistor is a three terminal device made up of silicon. it will be act as a switch. A transistor…

Q: 3. What is the bond length of Na-Cl? Given that the atom co-ordinates are Cl(0,0,0) and…

A: NaCl has a FCC structure for compounds. Each sodium atoms is surrounded by 6 chloride atoms and each…

Q: A sample of copper has a mass of 10.68 g when measured in air. It has a mass of 9.47 g when measured…

A: (1)   The number of atoms present in the sample can be determined as follows. n=Amatomic×min…

Q: Q. 3 What are the common uses of ionic liquids?

A: An ionic liquid is a salt in the liquid state.  Now let's see the use of ionic liquids

Q: commercial sterilization it takes 12 D. and the value of D is 2 minutes, then the time required for…

A: Given D = 2 min = 120 sec Time = 12 D

Q: 4.) Suppose you know a material is p-type, and that the thermal equilibrium electron concentration…

A: Solution:-

Q: What is meant by doping? How is Ge(Germanium) made n-type semiconductor? Explain with the help…

A: In the given question, We have discuss about doping and also discuss how germanium made n- type…

Q: examples? does temperature influence the surface tension sity of ionic liquids and their solutions?

A: The viscosity of liquid decreases rapidly with rise of temperature. For example , in case of water,…

Q: 5.In a N-type semiconductor, the position of Fermi-level a. Is lower than the center of energy gap…

A: We have to know the basic here.

Q: 4. Find the atomic spacing in a crystal of rock salt (NaCl), whose cubic structure. The density of…

A: Density (ρ) = 2.16 x 103 kg /m3Avagadro number = 6.022 c 1023 /moltotal mass of NaClM =  Na++ Cl-…

Q: 3. The heat can transferred within solid material because; (a) Electron movement due to electric…

A: To select correct option regarding heat transfer within the solid material.

Q: B/Fill in blank . 1-The atom by ionize is .. 2-To improve the conductivity of pure semi-conductor we…

A: 1.ionized atom has more energy than in its ground state 2.doping 3.valence band 4.by both electron…

Q: (iv) Assume that the concentration of NO2 in Delft today is 50 ug/m'. Convert that to ppb (show the…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: (1-5) The mobilites of free electrons and holes in pure Germanium are 0.33 and 0.18m/v-s…

A:

Q: •17 The Fermi energy of aluminum is 11.6 eV; its density and molar mass are 2.70 g/cm³ and 27.0…

A: Given value--- Fermi energy = 11.6 eV. density = 2.7 g/cm3 . molar mass = 27 g/mol . We have to…

Q: 4. Most metals are NOT * O Ductile. O Malleable. O Liquid at room temperature. O Good conductors of…

A: The material that conducts heat and electricity are known as metals. The materials that do not…

Q: Q2/ Choose the most appropriate answer: arks) 1- In an intrinsic semiconductor, the number of holes:…

A: 1) in intrinsic  semiconductor number of holes is equal to number of electrons............. a 2)…

Q: 2. Calculate the Fermi energy for the valence electrons in sodium metal given that the valency of…

A: Fermi energy;        EF=h28π2m3π2n2/3   ANS: The fermi energy is 5.073×10-21 Joule or 0.032 eV

Q: Solve the given problem. How many atoms are in a 3.0 g sample of sodium (Na)?

A:

Q: 8. What is the difference in packing efficiency between the hcp structure and the ccp structure?

A: as per our guidelines we are supposed to answer only one question. Kindly repost other questions as…

Q: The density of platinum is 21.45 x 103 kg/m3. a. Calculate the volume (in m3/atom) occupied per…

A:

Q: 1. What property of the electrons in a metal enables it to conduct electricity readily? What about…

A: "Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Q. 1. When a transistor is used in CB circuit, current gain is 0-987. If it is used in common…

A: Given data: -  The current gain when a transistor is used in CB circuit is α = 0.987.

Q: 7. What condition/s must be met so that the derived equation can be used? 8. What can you say about…

A: This equation is used as when the charges move from the position A to B, work will be done  And,…

Q: A-Draw [313] and (101) B- Calculate the number of atoms / unit area for (111), (110), (100) for the…

A:

Q: 2. In a silicon crystal, how many covalent bonds does a single atom form?

A:

Q: If the atomic radius of a metal that has the face-centered cubic crystal structure is 0.2718 nm,…

A: Given :    Atomic radius, r = 0.2718 nm

Q: Solid cesium bromide has the same kind of crystal structure as CsCl which is pictured below: CI Cs…

A:

Q: 2. How is enthalpy related to energy?

A: Enthalpy is defined as amount of heat (energy) absorbed or released by the system to cause a change…

Q: 5. Find the number of vibrational degrees of freedom of a CO, molecule, if the average kinetic…

A:

Q: LED has an advantage of a. Long life b. Fast on-off switching c. Low operating voltage d. All of…

A: LED is known as light emitting diode is a type of PN junction diode. LED is doped with special type…

Q: Suppose that a semiconductor device is using a 10.26-mg sample of a hypothetical element By, that is…

A:

Q: Q4: Carbon, silicon and germanium have four valence electrons each. At room temperature which one of…

A: We need to determine the number of free electrons for conduction in Silicon, Germanium and carbon…

Q: (1-5) The mobilites of free electrons and holes in pure Germanium are 0.33 and 0.18m/v-s…

A: According to the given question (1-5) ,  Mobilities for Germanium , un= 0.33 m2/vs= 3300 cm2/Vs up=…

Q: ohm 8ohm 5v 8 ɔhm find eruivalent

A: Given ---- all value given in circuit. We have to find--- current?

Q: One mole of silicon (6x1023 atoms) has a mass of 28 grams, as shown in the periodic table on the…

A:

Q: 3. Calculate the number of atoms in 250 g of silver (Ag) if atomic mass of silver is 107.868 g/mol

A: Given: The weight of the silver is 250 g. The atomic mass of silver is 107.868 g/mol.

Q: 47. The crystal structure of diamond is fcc, and the atom coordinates in the unit cell are (0, 0,…

A: Given: Lattice parameter of diamond, a = 3.57 Å Also diamond has a fcc crystal structure.

Q: Calculate the gram susceptibility using the formulae (equation 3). Assume C = 1.02, m0 = 0.8182 g,…

A: Since you have asked three questions, we will solve the first question for you. If you want the…

Nuclear Reactions

Nuclear reactions are processes in which the fundamental characteristics of a nucleus changes. They change into a completely different nucleus. These processes occur naturally in an unstable nucleus. Bombarding an energetic particle can induce nuclear reactions.  In this article, both the naturally occurring nuclear reactions are termed as radioactive decay and the induced nuclear reactions are further categorized as nuclear fission and nuclear fusion.