1. An ionic compound composed of chromium ions and oxide ions crystallizes into a face-centered cubic arrangement of chromium ions with oxide ions occupying all of the tetrahedral holes within the unit cell. What is the ionic formula for this compound? What are the oxidation states of the chromium and oxide ions?

Q: Use the figure of band structures to explain why the conductivity of pure metals decreases when…

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Q: In solitary atoms, electrons are free to inhabit only certain, discrete energy states. However, in…

A: In-band theory of solids, there are many energy bands but the following are the three most important…

Q: Choose the corect answer : Determine the a1, a2, a3 in the crystal give us information about a)…

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Q: Do the anions touch each other in any of these three structures? If not,which ions do touch each…

A: To find: the anions touch each other in any of the three structures . if not which ions do touch…

Q: The system has the least symmetry among the seven crystal systems. triclinic monoclinic rhombohedral…

A: Option A is correct answer Triclinic

Q: ered internal lattice structure

A: Any type of crystal material is made up of constituting atoms. In such crystal the molecules or…

Q: Given: Gold has a density of 19.32 g/cm3 , and the atoms are packed in a face-centred cubic crystal…

A: Welcome to bartleby ! We have to calculate radius of gold

Q: Explain the basic principles involved in X-ray crystallography. Include Bragg’s law in your…

A: SOLUTION: Step 1: X-ray crystallography is a method used for determining the atomic and molecular…

Q: Do the anions touch each other in any of these three structures? If not,which ions do touch each…

A: Anions do not touch each other in any of these three structures.

Q: 10. The anions of a salt are assembled as a simple cubic lattice with cubic holes filled. What is…

A: Ionic salt is a solid compound that is formed as a cubic lattice. The anions and the cations are…

Q: Alloys have numerous advantages in industrial applications. Which combination of metals is…

A: A metallic substance composed of two or more metals is alloy. Here we have to tell which metals…

Q: Using the structure below, determine the experimental formula for the compound. a. The number of…

A: a) The number of cations in the unit cell= 8 b) The number of anions in the unit cell= 4 So, the…

Q: Define the term body-centered cubic lattice?

A: Lattice is a part of crystal, which is a 3D arrangement of atoms, molecules, or ions. Furthermore,…

Q: Discuss the importance of understanding in crystal structure of metal and why different crystal…

A: Topic- Crystal nature of the metals

Q: 2 The Crystal Structure is BCC

A: The body-centered cubic (BCC) unit cell has atoms at each of the eight corners of a cube plus one…

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: The stacking pattern of simple cubic crystal structure is АВАВАВ АВСАВС ААВAАВ AAAAAA

A: Cubic Crystal Structure: The type of unit cell where the atoms of the crystal are oriented only at…

Q: Explain what is Hexagonal Closest Packing?

A: Crystalline solids: Crystalline solids have systematic and repeated units. The three dimensional…

Q: A hypothetical metal, which is a single crystal and made up of one chemical element, has an FCC…

A: FCC structure means face centered cubic arrangement, here total 4 atoms used to present in a

Q: Calculate the energy for vacancy formation (in J/mol) assuming that the density of the metal remains…

A: Matter exists in solid state also. Metals are in solid state. Temperature is the measure of hotness…

Q: What constitutes a lattice point

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Q: What type of crystal structures possess the least degree of symmetry?

A: ANSWER

Q: Briefly explain why chemically similar alkali metal chlorides, NaCl and CsCl, have different…

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Q: Define the term Cubic Crystalline Lattices?

A: A lattice is an ordered array of points describing the arrangement of particles that form a crystal.…

Q: The number of vacancies in a metal decreases by a factor of 6. When Temperature is decreased from…

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Q: What is the coordination number of the crystal structure shown below?

A: Here . Given crystal is face centred cubic lattice. (fcc)

Q: The property of plasticity, the ability of metals to be shaped and formed is provided by crystal…

A: Plasticity, also known as plastic deformation, is the ability of a solid material to undergo…

Q: Why do salt crystals have a cubical shape?

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Q: A hypothetical metal, which is a single crystal and made up of one chemical element, has an FCC…

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Q: Iridium crystallizes in a face-centered cubic unit cell that has an edge length of 3.833 Å.…

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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: An unknown metal has a density of 7.8748 g/cm 3 and crystallizes using a body-centered cubic unit…

A: Given that an unknown metal crystallizes in a bcc unit cell and edge length is 0.28664 nm and the…

Q: If a metal crystallizes in a face-centered cubic lattice, each metal atom has"nearest neighbors." 4.…

A: The unit cell, a crystal's building block, is the smallest repeating unit in the crystal lattice.…

Q: 74. Assume the two-dimensional structure of an ionic compound, M,A,, is

A: To determine the empirical formula for the below two-dimensional structure of an ionic compound

Q: Define crystal structure?

A: A crystal structure is a unique arrangement of atoms in a crystal. A crystal structure is composed…

Q: The picture shown is a schematic of what plane? (Note that the height and width of the square are…

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Q: This is the overall result of the attractive and repulsive forces a crystal contains: A. Lattice…

A: B. Lattice Energy

Q: Based on their formulas, classify each of the following in the solid state as a molecular, ionic,…

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Q: lattice structure of CsCl is shown below. What

A: We have to tell which option is correct from given choices of options by telling which type of unit…

Q: Draw the Crystal Lattice Structure and Formula Unit for Potassium Nitrate.

A: Potassium Nitrate Chemical Formula: KNO3

Q: 4. Nickel has an fcc structure with all atoms at lattice points and an edge length of 352.4 density…

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Q: What are the Cubic Crystalline Lattices?

A: Cubic crystal lattices have all the edges of same length and the angle between the all the faces is…

Q: Define the term crystalline lattice?

A: Interpretation: The term crystalline lattice is to be defined.

Q: Carefully study the following table: Radius Ratio Predicted Limiting Values Coordination Number…

A: The radius ratio is calculated by the formula, Radius ratio=r+r-......(1) Where, r+ is the radius…

Q: What are alloys?

A: Alloys: Combination of two or more metals in order to enhance the chemical and physical properties…

Q: 2. How to find what a materials crystal structure is? (FCC, BCC or neither FCC or BCC or

A: We have to tell how to detect a material crystal structure is either FCC, BC, or neither FCC, or…

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.