Explain what is Hexagonal Closest Packing?

Q: Molybdenum has a BCC crystal structure, an atomic radius of 0.1363 nm, and an atomic weight of 95.94…

A: For BCC structure, number of atoms per unit cell = 2 Radius = 0.1363 nm Edge, a∘…

Q: Which crystalline solid would you expect to have the highestmelting point?a) Au(s) b) H2O(s) c)…

A: Temperature, at which solid phase of any compound converts into liquid phase is known as melting…

Q: In the FCC crystal structure the cube edge length a 3= 2RV2 (4 R)/V3 O 4V3 R 4V5 R

A: Given  FCC crystal structure    FCC means Face centered cubic crystal structure.

Q: Given edge lengths and face angles, predict the shape ofeach of the following crystals.a. a = 3 nm,…

A: Since you have posted a question with multiple subparts, we will solve first three subparts for you.…

Q: Dispersion forces occur, because at any moment the electrons are unevenly distributed in an atom.…

A: Dispersion forces are the forces that exists in every type of molecules. These forces are present…

Q: How to calculate octahedral voids ?

A: Given question is : How to calculate octahedral voids = ?

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: 1. Explain why an end-centered unit cell cannot be cubic. What is the highest possible symmetry for…

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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: The interhalogen compound BrF3 is a volatile, straw-colored liquid. The compound exhibits…

A: On increasing the temperature, the electronic conductivity decreases. This indicates that a fewer…

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: Which of the following represent closest packing of spheres? 11 III IV O II + IV OI + IV III+IV | +…

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Q: What type of packing is shown below? primitive cubic tertagonal cubic hexagonal closed pack simple…

A: The packing which is shown in the picture is

Q: This arrangement of atom results in the greatest stability of solid a.scc b.bcc c.fcc

A: In fcc arrangement, atoms are present at the corners as well as center of each cube face of the…

Q: Determine the Madelung constant of the two-dimensional ionic crystal in the figure below for the…

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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: #17. arrange the following pure solid elements in order of increasing electrical conductivity.

A: The electrical conductivity is determined by the ease with which the electric current can be passed…

Q: What are the Closest Packed Structures?

A: A closed-packedlayer, where each sphere is near to other six spheres in same plane ,the ordergives…

Q: Define crystal structure?

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

Q: Why does CsCl present a body-centered cubic lattice and explain it with a diagram?

A: We know that in a body centered cubic lattice, atoms are present in 8 corners as well as in the body…

Q: 3. The number of Bravais lattices are. (a) 7. (b) 14 (c) 10

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Q: what is the magnetic moment of diamagnetic substances?

A: Diamagnetic substances does not possess permanent magnetic dipole moment.  When these substances are…

Q: Gallium has an orthorhombic structure, with a0 0.45258 nm, b0 0.45186 nm and c0 = 0.76570 nm. The…

A: Hi. Since you have posted multiple questions, we will solve only the first question for you. If you…

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

A: B. Lattice Energy

Q: Order the following from most to least dense. Hexagonal closest packed(HCP), body centered…

A: The ratio of the volume occupied by the spheres to the total volume of the unit cell is called as…

Q: Determine the possible crystal structure of Zinc Blende structure (ZnS), if the radii are as follows…

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Q: INTERPARTICLE FORCES 129 4. The melting points of Na and Mg at 1 atm are 98°C and 650°C,…

A: Noble gas shorthand electron configuration is the way of writing any element's electron…

Q: Why does CsCl present a body-centered cubic lattice?

A: Crystalline solids are mainly characterized by regular and repeating pattern of its constituent…

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: What is the difference in packing efficiency between the hcp structure and the ccp structure

A: The packing efficiency is the fraction of volume in a crystal structure that is occupied by…

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

A: Please find your solution below : Crystal structure is an ordered arrangement of atoms, ions or…

Q: Indicate the strongest force holding the crystals together in the following substances by putting a…

A: There are various type of intermolecular forces are present in molecules such as dipole-dipole,…

Q: What are different types of solids, give one example for each and what do you understand by covalent…

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Q: Network covalent substances have the highest melting points of all substances. Is it true or false?…

A: Given statement,Network covalent substances have the highest melting points of all substances.

Q: 1. The chart below shows three allotropes of carbon. ALLU1HOMIC UHMS O CAKSUN These three forms have…

A: Carbon is an element which can exist in different physical forms. The capacity of C to exist in…

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

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Q: what is the plain of the closest packing of FCC and BCC

A: The cubic lattice contains atoms in the corners, face centres and body centres. This cubic lattice…

Q: Indicate the strongest force holding the crystals together in the following substances by putting a…

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Q: What kind/type of force does Schottky defects induces on its neighboring atoms? Explain.

A: Schottky defect: The Schottky defect is a type of point defect formed by a vacant position in a…

Q: Which solid will be least soluble in water? O FEPO4 O Caso4 CASO4 KNO3

A: The solubility of ionic solids can be predicted by knowing solubility rules These solubility rules…

Q: Why are the close pack directions important feature in crystal structure? (one sentence only)

A: To give the importance of close pack directions in crystal structure?

Q: What type of packing is shown below? O body centerd cubic O cubic closed pack simple cubic O…

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Crystal Lattices and Unit Cell

Consider a crystal. The regular and repeating pattern of constituent particles is the most distinguishing feature of crystalline solids. A crystal lattice is formed when these particles are replaced with representative points. The three-dimensional arrangement of constituent particles is known as a crystal lattice. Unit cell is that the smallest portion of a space lattice which when repeated in several directions, generate the whole lattice. Unit cell is a building block of a lattice. It is the smallest unit of cell.