1. Why does a metal generally have a higher electrical conductivity than a ceramic?2. Give 2 reasons why fluorine has the highest electronegativity of any element.3. Why does ice have a lower density than liquid water?4. Why do FCC and HCP have identical atomic packing factors (0.74) if they have differentcrystal structures?5. Why are Pearson symbols not sufficient to precisely describe all crystal structures?

Step 1:1) Metals generally have higher electrical conductivity than ceramics due to differences in…

Answered: 1. Why does a metal generally have a…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Project 4: a) Discuss the properties that related to FCC metals and compare it with SC and BCC structure. b) Compare between simple cubic cell (SC), body-centred cubic cell (BCC), face-centred cubic cell (FCC) and hexagonal close-packed cell (HCP) from all aspect Such as; the relation between a and R, and give some examples for each of them. c) Make a prototype for each one of them.
BCC Crystal Structure 1. Proof that for a Body-Centered-Cube Crystal Structure (BCC): 4 R a = V3 Where, "a" is the cube edge length. "R" is atomic radius. 2. Compute the volume of a BCC unit cell (Vc) in terms of the Atomic radius R. 3. Proof that the BCC crystal structure atomic packing factor is equivalent to 0.68
Which of the following have the same periodicity as the crystal lattice: a) electron wave function, b) electron distribution probability, c) lattice potential
In the cubic structure, there are mainly 3 elastic constants including C11, C11, and C44. Now, in my simulation, the value of C11 is becoming very high due to applying pressure. So far, in the simulations I've done, it's reached around 570 GPa. If more pressure is induced, it could increase further. My question is, is this increase normal?
a) What is atomic packing factor? What is the effect of the atomic packing factor on material's properties, Calculate the atomic packing factor of SC, FCC, BCC and HC and give some metal elements as examples for each crystal structure b) Which crystal planes and directions are most favourable for slip in materials having FCC structure
please answer as soon as possible
The diagram is a schematic illustration of what kind of defect? O A vacancy in an ionic ceramic O A vacancy in a metal O A dislocation O An interstitial impurity in a metal
please answer quickly
Crystal structures have long range order. True or false?
The random arrangement of atoms in a structure is known as amorphous structure. Select one: True False
Young's modulus is a very important mechanical property that can be directly measured by Vickers's hardness test. :Select one True False
Potassium (K) has the Body-Centered Cubic (BCC) crystal structure. The edge length is a = 0.533 nm. What is the linear density in atoms/nm along direction [011P Select one: a. 4.50 b. 6.37 O C. 3.18 d. 7.48 O e. 1.33 Europium has the Body-Centered Cubic (BCC) crystal structure shown in the figure below. The radius of the Europium atom is r= 0.204 nm. What is the planar density in atoms/nm in plane (20)? Plane (200)

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