Imagine the primitive cubic lattice. Now imagine grabbingopposite corners and stretching it along the body diagonalwhile keeping the edge lengths equal. The three angles betweenthe lattice vectors remain equal but are no longer 90°.What kind of primitive lattice have you made?

Q: imple Cubic Structure fter modeling a SC cell structure as described in the Procedure draw a…

A: As per the bartleby expert guidelines, I am allowed to answer one question at a time.  Please repost…

Q: Use the References to access important values if needed for this question. The substance cesium is…

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Q: Both covalent-network solids and ionic solids can havemelting points well in excess of room…

A: a) Since the ionic solids have ions present in it. Hence it is polar in nature due to presence of…

Q: An element crystallizes in a face-centered cubic lattice. Theedge of the unit cell is 4.078 Å, and…

A: Given, Edge length of a unit cell = 4.078A. Density of crystal = 19.30g/cm3. The volume of the unit…

Q: There is a 2D arrangement of atoms as shown figure. It's a small region of a full crystal. The…

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Q: Give some examples of Covalent-network solids?

A: Covalent-network solids are a network of atoms ( can be of the same element or different element)…

Q: can crystal of a solid have more than six sides ? Explain your answe

A: Interpretation -  To explain that can crystal of a solid have more than six sides -     Introduction…

Q: 2.3 The diagram below shows a cubic structure. Redraw the structure and identify point defects on…

A: The point defects in the given structure is,

Q: Define the term cubic closest packing?

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Q: Considering a cubic crystal system, show that the [hkl] direction is perpendicular to the (hkl)…

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Q: 1. a) The density of a metal is given as 21.45 g cm. If the lattice parameter, a = 3.92 A and Z =…

A: Density of crystal  = Z(no. of atoms in a unit cell x mol. Mass/volume x Avagadro’s Number   We know…

Q: Sodium metal (atomic weight 22.99 g>mol) adopts abody-centered cubic structure with a density of…

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Q: 2. Draw (-101), (121), (210) and (1-1-1) planes with its directions in a cubic lattice.

A: We can draw the corresponding planes by positioning the given points on the corresponding three…

Q: The thermal and mechanical processing of materials isan important step in ensuring that they have…

A: Solution -  (a) Given: Metallic element undergoes a phase transition in which the crystal…

Q: What is the origin of Van der Waals forces? Why it is important in the dispersion of ceramic…

A: We use DLVO theory to explain how Van der Waals force among ceramic particles is useful in the…

Q: Pure iron crystallizes in a body-centered cubic structure, shown in the figure.but small amounts of…

A: Given statements: Pure Fe crystallizes in BCC whereas Fe with small impurities can stabilize in FCC.…

Q: Explain why X rays can be used to measure atomic distancesin crystals but visible light cannot be…

A: Diffraction is a phenomenon which enables us to measure the interatomic distance in crystals.…

Q: Is it possible for for non-metals to have unit cell with face-centered cubic crystal structure?

A: Solid :-        Solid are the substance which having definite shape, volume, mass etc.       Solid…

Q: b) How many tetrahedral and octahedral interstitial sites are there per hcp unit cell? Explain your…

A: A regular arrangement of constituent particles in three dimensional space is call space lattice and…

Q: Derive the minimum value of r(cation)/r(anion) to ensure triangular crystal structure in ceramics.

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Q: Which point defect in its crystal units alters the density of a solid?

A: The density alters only when there are vacant positions generated in the lattice crystal. If the…

Q: Silicon has a band gap of 1.1 eV at room temperature.(a) What wavelength of light would a photon of…

A: As your question consists of multiple subparts, we are solving only the first two, to then get the…

Q: Imagine the primitive cubic lattice. Now imagine grabbingthe top of it and stretching it straight…

A: Since all the angles are still 90 degree  and two sides are same just a third side is different…

Q: Which of those molecules can be considered as a highly aperiodic crystal

A: A crystal which is not having these properties : ideal, sharp diffraction peaks on the positions of…

Q: Buckminsterfullerene (C₆₀) is a soccer-ball–shaped mol-ecule with a C atom at each vertex. It…

A: No of carbon atoms in the unit cell = 240 atoms Molar mass of carbon = 12.01 g/mol Now, mass of…

Q: Which point defect is observed in a crystal when a vacancy is created byan atom missing from a…

A: Points defects are the defects that are caused around an atom or single lattice point. The types of…

Q: Q2. Calculate the planer density of planes (011) for BCC, and FCC crystal structures?

A: Planar density is defined as the number of atoms per unit area that is centered on a plane. So,…

Q: Including the empty space, find the voume of a simple cubic unit cell, body-centered unit cell, and…

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Q: Explain face centered cubic unit cell in the simplest way possible and create an overview about it…

A: Face centered cubic unit cell: It is a Nonprimitive cubic unit cell.  In case of simple cubic unit…

Q: At a certain temperature and pressure an element has the simple body-centred cubic unit cell,…

A: First, using the given radius value the edge length of the simple body centered unit cell is…

Q: Polymorphism can exist in any crystalline material, not just molecular solids. True or false?…

A: Crystalline solids are those where a long-range order is present in the arrangement of constituent…

Q: An increase in temperature causes most metals to undergothermal expansion, which means the volume of…

A: The volume (V) of the crystal is equal to the cube of edge length of the unit cell. Thus, if the…

Q: What are Nonbonding atomic solids? Give some examples?

A: Nonbonding atomic solids are having atoms as constituent particles in their solid phase. Examples…

Q: Imagine the primitive cubic lattice. Now imagine pushingon top of it, straight down. Next, stretch…

A: All the sides of a primitive lattice are equal (a = b = c). When a primitive cubic lattice is pushed…

Crystallography

Crystallography is the category of science that focuses on the atomic and molecular arrangements with their bonding constituting the crystal structure. It is derived experimentally and originated in the year 1912. It is a combination of two words; those are crystal, meaning a cold drop, and graph, meaning writing.