Why are X-rays used for crystallography? Why not use some other, more accessible type of electromagnetic radiation such as ultraviolet light?

Q: In solid CsCl, the coordination numbers of the Cs and Cl ions are, respectively: Select one: O 6 and…

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Q: What are the two types of layer arrangement in metals? Which has the closer packing?

A: The two types of layer arrangement in metals are : Simple Squares Hexagonal Layer   Simple squares…

Q: What are Liquid Crystals?

A: The solid material whose atoms are arranged in a definite order giving the formation of a lattice…

Q: What is the packing efficiency?

A: Packing efficiency is the percentage of space that the particles in the lattice occupy, which are…

Q: How is X-ray crystallography similar to microscopy? How is it different? Why does the technique of…

A: A question about qualitative analysis, which is to be accomplished.

Q: What type of two-dimensional lattice describes the structure of a single layer of close-packed…

A: The term "closest packed structures" refers to the most tightly packed or space-efficient…

Q: (2) A hypothetical tetrahedral crystal has the following lattice parameters: a = b = 0.40 nm, c =…

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Q: How can we calculate the packing efficiency of the two-dimensional lattice?

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Q: You've discovered what you think is a new face-centered cubic metal.  You find the density of this…

A: Given, The lattice is fcc density =5.58 g/cm3 edge length, a = 4.46×10-8 cm

Q: Why are isotactic or syndiotactic polymers often more attractive for materials development?

A: An isotactic polymer is a compound that is formed by the arrangement of monomers in the same pattern…

Q: A metal crystallizes in the face-centered cubic (FCC) lattice. The density of the metal is 21450…

A: Molar mass is the mass of 6.02 * 1023 atoms. To find the mass of one atom, molar mass must be…

Q: 10. Under what condition, a two-dimensional centered rectangular lattice will become (a) a square…

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Q: Name of Hypothetical Crystal Crystal Structure Radius, r, in Volume, V, in cm Length of one side of…

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

Q: A metal crystallizes as bcc structure and the atomic is 186 pm. Calculate 1)Edge length 2) volume of…

A: Data: Crystalline structure of metal is BCC Radius of unit cell (r) = 186 pm = 186 × 10-10 cm Atomic…

Q: All unit cell structures have six sides. Can crystals of a solid have more than six sides? Explain…

A: yes It is possible if a Atoms of crystal are arrange in such a manner by which it look like a Cube

Q: What is your favorite unit cell crystal structures? Explain why this is your favorite. You can use…

A: My favorite unit cell crystal structure is SCC or Simple cubic crystal. I like it because it is…

Q: Using your own words, discuss defects in crystalline structure and discuss two types of point…

A: •DEFECTS IN CRYSTALLINE SOLIDS:- ) POINT DEFECT:-The defect present around an atom or point in…

Q: 33. Nickel crystallizes in an fcc structure, with a unit cell edge length of 352 pm. What is the…

A: Concept:  Relation between radius of atom and edge length: The relation between edge length (a) and…

Q: a tetragonal crystal, unit cell a =4.5Å, c = 6Å. Evaluate the Bragg angle, q, for the (222)…

A: For a tetragonal crystal the unit cell dimension a =4.5 Å and c = 6 Å respectively. The reflection…

Q: Desricbe the Heat conductibility And Brittleness of metallic crystals, ionic crystals, molecular…

A: Metallic crystal-Metallic crystals are surrounded by a large no. of delocalized valence electrons .…

Q: What is the difference between hexagonal closest packing and cubic closest packing? What are the…

A: Hexagonal Closed Packing In a hexagonal closest packed structure, the third layer has the same…

Q: Platinum forms a face centered unit cell. Calculate the density (in g/cm3 ) of Platinum if the edge…

A: Given, Platinum forms face centred unit cell i.e, FCC then Z = 4 edge length, a = 3.29 Ao = 3.29 x…

Q: Use sketch diagrams to show the 110 and 211̅ lattice plane for a tetragonal crystal.

A: in this systempresence of  three mutually perpendicular axes, two  are equal in length.   TETRAGONAL…

Q: 7. Sketch the [110] direction and (110) plane in a cubic unit cell. Is there any geometrical…

A: Miller indices are group of three numbers which indicates the orientation of a plane or set of…

Q: surface energy of a single crystal

A: The surface energy of a single crystal depends on crystallographic orientation . The surface energy…

Q: 4. About the surface energy; (a) The surface energy of a single crystal depends on the…

A: (a) Answer - According to the question - Given - The surface energy of a single crystal depends on…

Q: What is coordination number for an element that crystallizes in the body centered unit cell? 10 4.…

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Q: Nickel, Ni, has a face-centered cubic structure with an edge length of 352 pm. What is the density…

A: The density of fcc unit cell of nickel is calculated in step two.

Q: Iridium crystallizes in a face-centered cubic unit cell. What is the radius of the iridium atom? The…

A: This question is related to crystallography. There are various types of lattice system such as…

Q: What is the true density of Zr, an HCP crystal, in g/cm3 ? Atomic Number = 40 Atomic Weight = 91.22…

A: Recall the equation d = (Z× Atomic number)/(Na×a3) d= density Z= total no of atoms in  Na= Avogadro…

Q: Three different crystallographic planes for a unit cell of a fictional metal. a. Separately draw…

A: Given:

Q: Describe three methods you would use to grow single crystals to be used in single crystal x-ray…

A: Grown single crystals should be 1. Single, 2. Perfectly shaped, 3. Around 0.1 - 0.3 mm in all three…

Q: The density and associated percent crystallinity for two polytetrafluoroethylene materials are as…

A: A fluoropolymer of tetrafluoroethylene is termed as polytetrafluoroethylene (PTFE). Its general…

Q: Sodium crystallizes in bcc structure. If the atomic radius is 186 pm. Find a) edge length, b) volume…

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Q: MgO has a face-centered cubic structure and has a density of 3.60 g/cm³. Calculate the edge length…

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Q: The edge length of the unit cell for nickel is o.3524 nm. Suppose Ni crystallized in the simple…

A: Nickel crystallizes in the simple cubic crystal structure ans edge length of the unit cell of nickel…

Q: Which of the following steps is not part of structure determination by X-ray diffraction? A) Growing…

A: Given steps, A) Growing a crystal. B) Exposure of the sample to high energy beams of light with a…

Q: What is the edge length in pm for a simple cubic with a radius of 145 pm?

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Q: What are the most common types of polymorphism in crystals?

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Q: What is the true density of Zr, an HCP crystal, in g/cm3? Where: Atomic Number = 40  Atomic Weight…

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Q: What is diffraction? What are the versions of x-ray diffraction? Discuss how it can be used in…

A: Introduction :  X-Ray Diffraction : X - Ray Diffraction is a powerful non - destructive technique…

Q: In the early days of X-ray crystallography there was an urgent need to know the wavelengths of…

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Q: An X-ray beam of l = 154 pm is incident on the surface of an unknown metallic crystal. It produces a…

A: Given   The wavelength of beam is 154 pm. The value of angle is 29.1 . The value of n is 1.

Group 14 Elements

The following elements come under group 14 of the periodic table.