Answer part c estion FourExplain why the average density of metals is higher than that of ceramics or polymers i.e pmetals >(a)Peramics > Ppolymers.(b) Copper crystallises as FCC (face centred cubic). Given that the atomic radius and mass of a given coppersample are 1.28 x 10:10 m and 64.15 g respectively, calculate the density of the copper sample. TakeAvogadro's number, NA = 6.023 x 1023 atoms/mole.(c) The linear density, LD, of an atom is given by the equation =Natomswhere Natoms is theLdvnumber of atoms and Lav is the unit length of the direction vector, both taken on a particular plane.Calculate the linear density of an aluminium atom with a lattice parameter of 4.05 x 1010 m and in a[110] direction.(d) Using neat sketches, show the difference between a triclinic and hexagonal crystal systems.

Aluminum is FCC at room temperature. Consider the diagram shown below for the FCC lattice.

Answered: (c) The linear density, LD, of an atom…

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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Vanadium (V) has a BCC crystal structure. The atomic radius is R = 0.132 nm and the atomic mass is M = 50.94 g/mole. What is the density of Vanadium in g/mm3? Given: Avogadro’s Number NA = 0.6023 × 1024 (atoms/mole) Select one: a. 1.5 b. 0.021 c. 0.011 d. 0.0087 e. 0.00597
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