Which of the following statements regarding the cubic dense stacking (CW) of metals is incorrect? A. Stacking type is A-B-A-B…. B. One octahedral space falls per atom. C. Two tetrahedral spaces per atom. D. CSI's unit cell is YMK. E. The coordination number of metal is 12.

Q: Use the atomic radii of scandium, yttrium, lanthanum, and lutetium to answer the questions below.a.…

A: a. In lanthanum electrons are added in the 4f orbitals which shield the electrons in the 6s orbital…

Q: Which ceramic material is best suited for the following applications? * Al:O3 SiO: UO: ZrO:…

A: Ceramic material: The materials which are neither organic nor metallic is known as ceramic…

Q: In FCC iron-carbon atoms enter the lattice (a)/(b) sites to form austenite, and in BCC iron, carbon…

A: a) In FCC austenite phase of steel, interstitial carbon occupies tetrahedral sites due to its…

Q: 2 - Explain the bonding, hybridization and geometry of carbon nanotubes that are used to help store…

A: Introduction: carbon nano tubes are in the form of cyliders. It can be made by the graphine sheet by…

Q: 5. (a) Which of the following has the highest energy, and which has the lowest energy? Give your…

A: Surface and grain boundary defects of a structural nature arise from a change in the stacking of…

Q: 5- Which is a linear defect? A) residual voltage B) outer surface C) dislocation D) interstitial…

A:

Q: What type of crystal defect is it that allows substitutional alloys to exist? A) Linear…

A: Based on the atomic arrangement, alloys can be of two types-substitutional and interstitial. In a…

Q: Nitrides are classified as     a. Cast iron b. Elastomers c. Ceramics d. Plain Carbon steel

A: Nitrides are classified as   a.Cast iron b.Elastomers c.Ceramics d.Plain Carbon steel

Q: The letter standard by ASTM to indicate miscellaneous subjects is O a. E O b. C O c. D O d. A A net…

A: 1) E for miscellaneous subject. option A is correct.

Q: As temperature decreases, the fraction of the total number of atoms that are capable of diffusive…

A: Higher temperature increases the energy of the molecules, therefore with increase in temperature of…

Q: NOTE: ANSWER ALL QUISTIONS Q1) Answer the following questions. (C..-- 1- Explain the selection of…

A: 1. 1. The selection of a specific material for a particular use depends on various factors like…

Q: is when 2 metals are mixed to improve mechanical strength and corrosion resistance

A: Alloying is the process called when two metals are mixed to improve the mechanical strength and…

Q: Question-4 What are the three most common metal crystal structures? List five metals that have each…

A:

Q: This atom arrangement may cause metal brittleness. None of the above Hexagonal closed packed Body…

A: Given

Q: Which of the following is NOT a factor in elemental segregation?

A: In material science segregation is the enrichment of atoms, ions, or molecules at microscopic region…

Q: 14- Which of the following is constant during Atomic Packing Factor (APF) calculation a. All of the…

A: 1) volume of an atom is constant.  2) For a given structure,  number of effective atoms are also…

Q: (B) Explain how the materials properties depend on the bonding energy such as modules of elasticity,…

A:

Q: 26c) Describe any two features of Body centered cubic and calculate the atoming packing factor for…

A:

Q: Increasing the temperature of a semiconductor breaks covalent bonds. For each broken bond, two…

A: Part a Mass of Si= 50 g Molecular weight of Si = 28.08 g/mol Avogadro number =6.023x1023atoms/mol…

Q: 139) what is the crystal structure of iron? a) Hexagonal tight-packed structure b) BCC…

A: As per given question what is the crystal structure of iron?

Q: 1.3) State with reason, the type of bonding that occurs in titanium chloride, TiCla.

A: According to terms and conditions of bartleby we can only provide 1st solutions (1.3).

Q: Name the imperfection of crystals when an impurity atom substitutes an original atom.

A:

Q: Which of the following material can be produced by Silicon Dioxide .a Mild steel .b Elastomers .C…

A: (a) The only property shown by grey cast iron is brittleness.So, option (c) is the correct option.

Q: •Graphene is defined as a thin sheet of carbon atoms arranged in a Hexagonal format?

A: Graphene is one of the allotropes of carbon which can be defined as one single layer of carbon…

Q: H.W.:- An ore is analyzed for manganese content by converting the manganese to Mn3O4 and weighing…

A:

Q: . Identify any two materials that are used to improve the properties of glass from the following…

A:

Q: 5. Which ONE of the following substances is LEAST ionic? a. NaCI b. KCI c. CuCl2 d. SbCl4 6.…

A:

Q: 11) Which of the following is constant during Atomic Packing Factor (APF) calculation a. All of the…

A: Atomic Packing Fraction Atomic packing fraction is defined as the ratio of total volume of atoms per…

Q: Aluminium alloys find use in aircraft industry because of (A) good weldability B) low specific…

A: Aluminium alloys find use in aircraft industry because of Answer: (B) low specific gravity

Q: What is the crystal structure for iron at room temperature? Simple cubic Hexagonal close pack Base…

A: Iron has two different crystal structure as its temperature increases from room temperature to its…

Q: 1. Study the physical and chemical structure of the Wyoming bentonite. 2. Study the Advantages and…

A: Wyoming Bentonite: Bentonite could be a fine clay material well-mined from the world, fashioned by…

Q: Explain the body centered cubic structure with a neat sketch and calculate the no of atoms per unit…

A:

Q: how is grain size estimated: What is microhardness, what are sample preparation for microhardness…

A:

Q: 18) In a HCP stucture as the volume of the unit cell increased atomic packing factor increases.…

A: Determine the formula for the atomic packing factor for any given structure. Here N signifies no.…

Q: True False F F Simple cubic where all the atoms are on the corners or vertices of the unit cell. T…

A: Given:  To determine whether the given statements are TRUE or FALSE

Q: In MO theory, which has the highest bond order?

A: According to the MO theory bond order is directly proportional to the bond energy and it is also…

Q: Carborundum is obtained when silica is heated at high temperature with (a) Carbon (c) Carbon dioxide…

A: Carborundum is a semiconductor made up of silicon and carbon. Its name is Silicon carbide and its…

Q: umber?

A: given: what is the unit of reynold number?

Q: ..In silicates, oxygen atoms which are bonded to two silicon atoms are Nonbridging oxygen (NBOS).…

A: In silicate glasses the oxygen atom that bonded together with two silicate atoms is called the…

Q: (This question has more than one correct answer) a. Crystalline lattice O b. High internal surface…

A: Answer is given below:  Option B, C & D are correct.  A: Silica gel doesn't have a crystalline…

Q: A missing atom  on the crystal lattice is Select one: Self Interstitial atom Frenkel Defect…

A: A missing atom  on the crystal lattice is Vacancy

Q: A student selected a crystalline material that contains silicon, aluminium, oxygen and nitrogen…

A: UTHM is highly fulfilling the requirements of ISO 9001-2015 Generally this standard coveys regarding…

Q: 152) Which element is the main alloying element in the brass alloy? A) chrome B) tin C) zinc D)…

A: Brass is an alloy made up of copper and zinc.

Q: 2) Joining of metals can be realized through mechanism(s) of Deformation Fusion Diffusion All of the…

A: deformation is the one of the metal joining process so this option is correct

Q: Some of the metals possess a body-centered crystal structure. Which of the following statements is…

A: Its answer is d. It has packing efficiency(74%) greater than SSC(52%) and BCC(68%).

Q: 4.44 For each of the following stacking sequences found in FCC metals, cite the type of planar de-…

A: Th step by step answer is given below.  We need to identify the types of defects in the following…

Q: 2- Which one of the following properties would not belong to "Ceramic A- Ceramics are ductile…

A: THE ANSWERS OF ALL THE QUESTIONS HAVE BEEN EXPLAINED BELOW. 2. Ceramics are neither organic nor…

Q: Which of the following is/are TRUE about the comparison of metal and ceramic properties? OMetals:…

A: Material are classified as 1. Metals 2. Ceramics 3. Polymers 4. Composites

The Space Lattice and Unit Cells

Every matter consists of atoms, molecules, and ions. If these atoms, molecules, and ions (micro-particles) are represented in a three-dimensional space-occupying certain specific points in space, then these arrangements are termed as space lattices and the specific points which are being occupied by atoms, molecules and ions are termed as lattice points. The atoms, molecules, and ions at the lattice points are generally grouped in a regular fashion and repeat periodically at the three-dimensional space.