The ionic bond is produced by dipole moment of polarized molecules and atoms mutual attraction of positively charged ion
Q: Figure 1 shows the schematic representation of how a metal atom moves under an applied force during…
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Q: 22. Write the Miller Indices for the following planes. ja2 ja2 a3
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Q: Total number of atoms present in a unit cell of body centered cubic structure is ________________.…
A: In body centered cubic structure ,one atom is present at the body center and 8 atoms are present at…
Q: In crystal structures, atoms touches one another and arranged irregularly in different directions.…
A: Answer: False Reason: In a crystal structure, the atoms are arranged in the same order. The crystal…
Q: Crystal Structure (Ch-3) Question-3 Name and sketch (free-hand) the 14 Bravais unit cells.
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Q: The orderly arrangement of atoms in a structure is known as crystalline structure. Select one: True…
A: crystalline structure Crystalline structure are those structure in which the atom, ions, or…
Q: The imperfections of crystals do not depend upon a. Deformation of the solid b. coordination number…
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Q: (b). Determined the miller indices for the directions and planes in the following unit cell:…
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Q: In the ground state of cadmium, Cd,a. how many electrons have l = 2 as one of their quantum…
A: Given: In the ground state of cadmium, Cd,a. how many electrons have l = 2 as one of their quantum…
Q: * The stacking ABAB is for FCC crystal structure BCC crystal structure HCP crystal structure O
A: BCC does not have any stacking sequence.
Q: Arrange these diatomic molecules in order of decreasing bond polarity: HCl, NO, F2, HI.
A: As we know the electronegativity of the diatomic molecule. Electronegativity difference of NO=0.4…
Q: Chemical energy refers to the energy associated with the bonds within nucleus of atom itself. Select…
A: Chemical energy is the energy stored in the chemical bonding line atom atom bond or atom molecules…
Q: What is the linearity (r-) value of the following concentration and absorbance values:
A: Option B is correct.
Q: Statement True False A A BCC crystal structure has a higher atomic packing factor than a close-…
A: The atomic packing factor for BCC lattice is 0.68, whereas HCP is 0.74. Hence HCP is having a…
Q: An electron strikes the screen of the cathode ray tube with a velocity of 10 to the 9th power cm/s.…
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Q: The smallest group of atoms showing the characteristic lattice structure while representing the…
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Q: There are fourteen atoms in a unit cell of none of these O body centered cubic space lattice close…
A: Space lattice Space lattice is an array of points showing how particles are arranged at different…
Q: se two metals due to their crystal structures.
A: Differences between Gold( Au) and Chromium( Cr) metals, Based on their Structure.
Q: In the H atom, what is the correct order (arrangement) of energy levels O3s = 3p =3d 3s>3p>3d
A: in h atom , what is the correct order of energy level (c) 3s <3p< 3d is the right answer…
Q: are the basic structural unit in materials. Answers: A, Unit cells B. Space lattices C. Atoms D.…
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Q: Name the imperfection of crystals when an impurity atom substitutes an original atom.
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Q: Among these lattice points, which lattice point lies on the [110] direction on the fcc. Select one:…
A: FCC Crystal : Face-centered cubic (FCC or CF) is the name given to a type of atom arrangement found…
Q: X. The Van der Waals bond is a re charged molecules; the charge is Y. Materials having large bonding…
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Q: (b) Determined the miller indices for the directions and planes in the following unit cell:…
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Q: Diffusivity represent how easily molecules of material A can diffuse to material B. State three (3)…
A: Diffusion is defined as the process by which atoms, molecules, and other particles blend together…
Q: State the crystal structure characteristics of a solid must have for optic modes to exist
A: Atoms make up a crystal structure. Points make up a crystal lattice. A crystal system consists…
Q: List four common types of finite elements.
A: The finite element is a technique to analyze the problems of engineering by sub categorise a large…
Q: lassified as low-density materials molecules develop primary bonds hardenis
A: a) FCC have heavier because it has high packing density. Statement is true b) WEquixed grain show…
Q: 2. In lithography process, you are asked to deposit nanoparticle in hc Resist A metal Substrate…
A: Given :- In lithography process, you are asked to deposit nanoparticle in holes. Select the process…
Q: True False F F Simple cubic where all the atoms are on the corners or vertices of the unit cell. T…
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Q: A vacancy is produced when an atom or an ion is missing from its normal site in the crystal…
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Q: When the chemical bonds are broken within the wood or coal, . energy is released. O Chemical O…
A: When the bond between atoms breaks, then chemical energy is released. Hence Option (A) is correct.
Q: When a foreign atom replaces the parent atom in the lattice position is Self Interstitial atom…
A: In a crystal structure of any metal, there exists defects at the atom level. These defects are of 3…
Q: Diffusivity depends on... Concentration Temperature of diffusion Crystal imperfections Type of…
A: To select : the appropriate option Explanation : Diffusivity : it is the measure of the ability…
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: Chromium (Cr) has the Body-Centered Cubic (BCC) crystal structure. The edge length is a = 0.288 nm.…
A: The linear density is given as : LD=no. of atoms centered on 1 1 1 direction vector length of 1 1 1…
Q: ill in the blanks When an element has its proper complement of valence electrons, it is…
A: When an element has its proper complement of valence electrons, it is electrically Neutral; when an…
Q: 6. Please indicate which structure belongs to metal, ceramic, polymer and glass ceramics: (a) (b)…
A: ● Metal has closed packed structures. ● Ceramic has crystalline structure ● Polymer is which having…
Q: Diffsuion process is faster for____ A) Covalently bonded materials B) High density materials
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Q: Crystal structures have long range order. True or false
A: It is needed to determine if the crystal structures have long range order or not.
Q: 45 Nm |15 N 300 m 300 mm 15 N A 200 mm В 300 mm B.
A: Write the coordinates of the point, B≡300,600,0B≡200,300,0 Calculate the position vector,…
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- 142) What property does a bonded material with an electron cloud not exhibit?a) Conductivityb) Heat conductionc) Toughnessd) Ductilitye) An opaque appearance 143) Which have equal and oppositely charged forces?A) DipoleB) metalC) van der waalsD) hydrogenE) london 144) What is Frenkel error?A) atomic vacuumB) displaced ionC) intermediate atomD) ion pair spacingE) slipCalculate the number of vacancies per cubic meter in iron at 855°C. The energy of vacancy formation is 1.08 eV/atom. Futhermore, the density & atomic weight are 7.65g/cm3 & 55.85 g/mol respectively.The composition of the liquid in an 29 wt% griffinium alloy at 898 degrees centigrade is (enter the wt% griffinium)
- Calculate the number of vacancies per m3 for gold at 900 C. the energy for vacancy formation is 0.86 eV/atom.Zinc crystallizes in HCP structure. Geometrically the height of the unit cell is 43.4378 x10^-8 cm 4.34378x 10^-8 cm 2.1718 x10^-8cm data insufficientDecarburization of a steel occurs when carbon diffuses from the steel to the surface and enters the atmosphere. How long will it take for a 0.6 % C steel surface to decarburize below 0.1 % C for a depth of 2 mm if the FCC steel is held at 1250 °C in an atmosphere containing zero carbon? I need this question's answer. It's important for me.
- The composition of the α in an 42 wt% griffinium alloy at 662 degrees centigrade is (enter the wt% griffinium)101) Which data is used in designs where weight and energy are considered together?A) elastic modulusB) yield strengthC) special strengthD) breaking strengthE) tensile strength 102) mass diffusion (spreading) is defined by which law?a) faradayB) archimedesC) fickD) hume-rotaryE) exchange 103) which should be valid for the formation of the interphase?A) high electronegative differenceB) atomic radius similarityC) full resolutionD) limited resolutionE) atomic size differenceThe force of attraction between a divalent cation and a monovalent anion is 8.02x10-9 N. If the ionic radius of the cation is 0.060 nm, (q=1.6x10-19 C, k0=9x109 V∙m/C). What is the anion radius?
- (a ) Rhodium has an atomic radius of 0.1345 nm and a density of 12.41 g/cm^3 . Determine whether it has an FCC or BCC crystal structure. (Note: It has an atomic weight of 102.91 g/mol.) (b) If aluminum diffused into a thick slice of silicon with no previous aluminum in it at the temperature of 1100 degrees celcius for 6 hours, what is the depth below the surface at which the concentration is 1016 atoms/cm^3 if the surface concentration is 1018 atoms/cm^3 . D=2x10^(-12) cm^2 /s for Al diffusing in Si at 1100 degrees celcius.Iron (Fe) undergoes an allotropic transformation at 912°C: upon heating from a BCC [ alpha phase) to a FCC (gamma phase). Accompanying thistransformation is a change in the atomic radius of Fe from R bcc= 0.12584 nm to R fcc= 0.12394 nm and, in addition, a change in density.Compute the percentage volume change per atom (Vfinal |-V initial |)/ (V; initial |) associated with this reaction . Indicate whetherthere is an expansion or zontraction taking place during the processNiobium (Nb) and Vanadium (V) have the BCC crystal structure, and Ag forms a substitutional solid solution at room temperature. Calculate the unit cell edge length (nm) for a 25 wt% Nb-75 wt% V alloy