X-rays with a wavelength of 1.54 Å are used in diffraction off of an FCC metal powder which has a lattice constant of 3.15 Å. Provide the Miller indices and 20 angle of the next lower angle line, if any exists. Hint: The lowest angle line for FCC has the largest 'd' value.

Q: A specimen of iron has a bcc structure with a lattice parameter of 0.2866nm. Using the Bragg…

A: First four diffraction peak of this material: First: (2θ)110 = 44.716° Second: 2θ200 = 65.095°…

Q: Figure below shows the first four peaks of the x - ray diffraction pattern for copper, which has a…

A:

Q: X-rays with a wavelength of 1.54 Å are used in diffraction off of an FCC metal powder which has a…

A: The different planes of atoms are identified using Miller indices, which is represented as (hkl).…

Q: The unit cell of the tetragonal (a = b not equal to c) phase of a Ni and Nb alloy is given below. a.…

A: Given a tetragonal unit cell where a=b but not equal to c . Let's discuss the mirror planes and…

Q: Lattice parameters of α and β phases were calculated from x-ray diffraction measurements performed…

A: A graphical representation of all the states (solid, liquid, gas) under specific conditions is known…

Q: KCI is a crystallized in a face centred cube (FCC). What is the percentage of the filled holes if K…

A: Radius of potassium ion given=182pm Radius of chloride ion given=280pm

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: Figure below shows the first four peaks of the x-ray diffraction pattern for copper, which has a…

A: Introduction: X-ray diffraction, a phenomenon in which the atoms of a crystal, by virtue of their…

Q: Consider this x-ray diffraction pattern for the mineral magnetite (Fe3O4) and Bragg's Law.  Which of…

A: On considering the given X-ray diffraction pattern for the mineral magnetite and Bragg’s Law, the…

Q: a) calculate the packing efficiency of a body-centred cubic structure. (show working) b) the…

A:

Q: (a) Draw the unit cells of i) FCC and ii) BCC. In the FCC unit cell, sketch and label one of the…

A: Where, FCC is the Face centered Cubic unit and the BCC is the Body centered Cubic unit, FCC and BCC…

Q: 1. Show that the atomic packing factor for FCC is 0.74.

A: For FCC lattice  Z = 4  a = 2√2r  To find the packing fraction (PF) Packing fraction is percentage…

Q: A20g_sample of a n0nreactiveMetal is placed in flask c0ntaining 12mL 0f water; the final v0l 0f…

A: Given: mass of sample = 20 g Initial volume of water = 12 mL Final volume of water = 13.67 mL edge…

Q: During a lunar exploration an unknown crystalline substance is discovered whose external morphology…

A: a) Determination of the type of crystal: Ɵ Sin Ɵ Sin2 Ɵ Simplest form Multiply by 3 (h,k,l)…

Q: Iron at January 12th continues heating from a BCC crystalline structure to an FCC crystalline…

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

Q: Atomic Density Calculate the density of body-centered cubic iron and compare it to the density of…

A: # Calculation for the density of BCC iron: For BCC iron, lattice parameter, a = 0.287 nm

Q: Calculate the distance between octahedral sites in the FCC and HCP structures in units of r0, the…

A:

Q: The angle of a Bragg reflection from a set of crystal planes separated by 99.3 pm is 20.85°.…

A:

Q: 7. It is not possible to pack spheres together without leaving some void spaces between the spheres.…

A:

Q: A solid is thought to have an orthorhombic structure. Calculate the positions D and 2θ for the plane…

A: Interpretation-  To calculate the position D and 2θ for the plane 111 expected in the diffraction…

Q: What is the main factor in not observing the glass transition behavior in highly cross-linked and…

A: Glass transition behavior in highly cross-linked and highly crystalline polymers.

Q: What type of two-dimensional lattice describes the structure of a singlelayer of close-packed atoms?

A: Two dimensional close packing can be done in two ways : either by stacking the second layer exactly…

Q: Ni3Al is used in the turbines of aircraft engines because of its strength and low density. Nickel…

A: Given that : For Ni, the length of the cubic unit cell edge = 3.53 Å For Ni3Al, the length of the…

Q: 1. Derive the coordination number and atomic packing factor of BCC. 2. Compute the density of lead…

A: Hello. Since multiple questions have been posted, the first question shall only be solved in this…

Q: 4.Magnetic property Ir°: (Xe) 6s² 4f14 5d7 [Ir(NO2)613- [IrBr3- 5. Both [Ni(CN)4]2- and Pt(CN)4]²-…

A: Since you have posted a question with multiple sub-parts, we will solve first three (4, 5 and 6)…

Q: 1) Let us consider GaAs structure with lattice constant a a) How many nearest neighbor atoms (As) of…

A: As you have asked multipart questions, we have answered your first three questions. If you want an…

Q: ketch the (1 1 1) and (1 11) planes in a simple cubic lattice. Show that (1 1 1) and (111) are a set…

A: Miller indices are the atomic representation in crystal lattice.

Q: Determine the repeat distance, linear density, and packing fraction for FCC nickel, which has a…

A:

Q: A simplifed phase diagram for iron is shown below, with the solid part divided into the body-centred…

A: FCC has more dense packing and it has close packed structure.But, BCC is less dense and it is not…

Q: value, 7.87 g/cm. Rhodium has an atomic radius of 0.1345 nm and density of 12.41 g/cm³. Determine…

A: 4) Given, Atomic radius of Rhodium (r) = 0.1345 nm = 0.1345 × 10-7 cm = 1.345 × 10-8 cm Density (d)…

Q: Calculate the concentration of vacancies in copper at room temperature (25 °C). What temperature…

A: Given that Temperature = 25°C  The lattice parameter of FCC copper is 0.36151 nm

Q: Q1: find miller indices for a crystallographic plane as showed in a below figure. This plane of…

A:

Q: calculate the d and 2θ positions for the 111 plane expected in the diffraction pattern as a result…

A:

Q: An element, BCC , shows diffraction peaks at 2theta: 40, 58, 73, 86.8, 100.4 and 114.7:…

A: Introduction: BCC stands for Body Centred Cubic. the atoms in the corner of BCC unit cell do not…

Q: Show that the atomic packing factor for FCC is 0.74.

A: We have to show that the atomic packing fraction of FCC is 0.74.

Q: 3. Find lattice constant and atomic radius of Silver from the X-Ray spectra for Silver nanoparticles…

A: The important points given in the question are: All the peaks corresponding to Miller planes…

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: 3 Rubidium (Rb) adopts a body-centred cubic, BCC, structure at a pressure of 1 atm. Upon application…

A: (i) The main factor for transformation from BCC to FCC is the decrease in spacing among atoms due to…

Q: prove that the rc/ra =0.225 for coord number 4 in ceramic crystal structur

A: We have given coordination number given is 4 we want to show that minimum cation to anion ratio…

Q: Simple cubic cell can be generated be generated by placing a layer above and below this layer in…

A: The simple cubic cell is a cube with an atom on each corner. The only element that displays SCC at…

Q: (9) [Inorganic] CaCO3 has three different crystalline or polymorphic forms: Calcite space group…

A: Property Calcite Aragonite Vaterite Crystal lattice structure Trigonal Orthorhombic Hexagonal…

Q: a) For bcc lattice, which values of hkl give reflection? b) For fcc lattice, which values of hkl…

A: Lattice may be simple cubic, face centered, body center and diamond lattice.

Q: B: Define the coordination number and its value for BCC unit cell.

A: BCC: body centred Cubic unit cell.  The structure and coordination number explained below.…

Q: (a) For refractory ceramic materials, cite two characteristics that improve with and two…

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

Introduction to chemistry

Chemistry is a branch of science that deals with the analysis of material and the substances that comprise it. It also manages the properties of these substances and their reactions to form new substances. It is basically centered on particles and atoms that make up components and mixtures. These chemical species will in general connect using bonds.