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

Q: Platinum (Pt) has a face-centered cubic crystal structure and a density of 21.5 g/cm3. What is the…

A: Given: Density of platinum= 21.5 g/cm3

Q: How many lattice points does a face-centered cubic unit cell contain? 04 O 1 O 2 O 12 8

A: In face centered cubic unit cell eight atom present at corners of cube and six atom present at…

Q: ray, resistant. It has a density of 16.4 grams per cubic centimeter and a molecular weight of…

A:

Q: Define the term cubic closest packing?

A:

Q: A (made-up) metal has a face-centered cubic crystal structure. Its density is 20.5 g/cm 3. Its molar…

A: For the FCC cubic,  Density = 20.5 g/cm3 Molar mass = 189 g/mol

Q: 2. What element forms a face centered cubic cell, has a density of 8.92 g/cm', and a radius of 128…

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

Q: Barium is the largest nonradioactive alkaline metal. It has a body-centered cubic unit cell and a…

A: Consider the Barium atom to be a sphere. Let R be the radius of Barium So, Volume of the…

Q: Titanium has a body-centered cubic unit cell. The density of titanium is 4.50 g/cm³. Calculate the…

A: SOLUTION: Step 1: The density of titanium = 4.50 g/cm3. The edge length of the body centered cubic…

Q: A (made-up) metal has a face-centered cubic crystal structure. Its density is 20.5 g/cm 3. Its molar…

A: Given, Structure: FCC (Face centred cubic lattice) Density (d) = 20.5 g/cm3 Molar mass of metal =…

Q: he NaCl crystal structure consists of alternating Na⁺ and Cl⁻ ions lying next to each other in…

A: Atomic radius: Distance between nucleus and last shell electron of an atom is an atomic radius. It…

Q: What type of substance would S8 be? Diatomic molecule Covalent Network Ionic Crystal Lattice…

A: Sulphur forms numerous allotrope of which yellow rhombic sulphur and monoclinic sulphur  are the…

Q: What fraction of the total volume of a face-centered cubic structure is occupied by atoms? Vsphere…

A: In FCC,  No. Of atoms at cornes = 8  Contribution = 1/8 Atom per unit cell = 8× 1/8 = 1  No. Of…

Q: A substance is a brittle crystal that conducts electricity in molten liquid state only. Which type…

A: Given : different types of crystal

Q: The ionic compound, CsCl, forms a body centered cubic structure (see below) where the anions occupy…

A: Given : Structure of CsCl is BCC i.e body centered cubic. Density of CsCl = 3.99 g/cm3  And ionic…

Q: Which metal(s) is most likely to accommodate Hatoms (radius 37.0 pm) with the least distortion to…

A: Bоth  Ti-  аnd  Zr-bаsed  аllоys  behаve  in  similаr  wаys  with  resрeсt  tо  their  interасtiоn…

Q: A (made-up) metal has a face-centered cubic crystal structure. Its density is 20.5 g/cm 3. Its molar…

A: Given: Density of metal = 20.5 g/cm3. The lattice structure of the metal is FCC. And the molar mass…

Q: Tantalum is a rare, hard, blue-gray, lustrous transition metal that is highly corrosion-resistant.…

A:

Q: Explain why the melting temperature of diamond is more than 10 times higher than that for…

A: In structure of diamond one carbon is bonded to 4 other carbon atoms making a 3D network making a…

Q: Calcium forms a face-centered cubic crystalline structure with a density of 1.55 g/cm3. What is its…

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Q: Nickel has a face-centered cubic structure and has a density of 8.90 g/cm3. Calculate its atomic…

A: Given, the density of nickel = 8.90 g/cm3 It is also given that nickel has face-centered cubic…

Q: Would you predict the melting point of the following substances to be high or low?  Explain why.…

A: Melting point of a substance is the temperature at which it changes from solid state to liquid state…

Q: Which substance would you expect to have the LOWEST melting point? CH3F CH3OH Ni LiCl

A: The objective of the question is to determine which among the given substances - CH3F, CH3OH, Ni,…

Q: Which of the following is most likely to have the highest viscosity at 25°C?   HOCH2CH2OH C5H12 C7H8…

A: Viscosity is an internal property of a fluid.   HOCH2CH2OH C5H12 C7H8 C5H11OH We have to select the…

Q: cion 2 Tridium (192.2 g/mol) crystalizes in a face centered cubic lattice. Iridium has a density of…

A: The relationship between density and volume is as follows,…

Q: Element Xr (99.88 g/mol) has a BCC unit cell and a density of 16.87 g/cm33.  Based on this…

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Q: 3) Show the unit cells in the following figures. Indicate whether they are primitive or centered. ব…

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Q: The ionic compound, CsBr, forms a body centered cubic structure (see below) where the anions occupy…

A:

Q: An alloy of gold and copper is shown below. Given that 24 carat gold is pure gold, what carat does…

A: Carat is a mass measurement, 24 carat gold is 100% gold by mass.

Q: What is the correct ranking of the ionic solids according to their melting points? O Cas = MgS <…

A: Given:  Ionic solids: NaBr, MgS, KI, CaS

Q: What is the edge length of a body-centered cubic unit cell made up of atoms that each has a radius…

A: Find the edge length in BCC unit cell having r = 178 pm

Q: Density= Calcium has a cubic closest packed structure as a solid. Assuming that calcium has an…

A: Answer:For a unit cell, value of density is:Here:

Crystal Structures

Solids are present all around us. They have different properties and applications. Diamond and graphite are two well-known solids. Diamond is the hardest material in the world and is used in making jewelry. Graphite on the other hand is soft. The lead of your pencil is graphite. Why are they so different in appearance and properties despite the fact they are chemically the same? Both are allotropes of carbon. The answer lies in the structure, the way constituent particles are arranged in the solids.