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(a) Explain the following terminölögies i. Crystallinity ii. Allotropy iii. Polymorphism iv. Coordination number 31Page シー (b) Copper crystallises as FCC (face centred cubic). Given that the atomic radius and density of a given copper sample are 1.28 x 1010 m and 8.98 x 10' kg/m' respectively, carry out the following: (i) Calculate the mass of the copper sample. Take Avogadro's number, NA = 6.023 x 1023 atoms/mole. (ii) If the interatomic planar spacing, d, in the sample above is 2.96 x 1010 m, determine the angle at which the first Bragg reflection will occur from the (111) plane if x-radiation of wavelength 1.52 x 1010 m is used for the analysis. (c) Give two uses of pure copper and two commercial applications of copper alloys.

(a) Explain the following terminölögies i. Crystallinity ii. Allotropy iii. Polymorphism iv. Coordination number 31Page シー (b) Copper crystallises as FCC (face centred cubic). Given that the atomic radius and density of a given copper sample are 1.28 x 1010 m and 8.98 x 10' kg/m' respectively, carry out the following: (i) Calculate the mass of the copper sample. Take Avogadro's number, NA = 6.023 x 1023 atoms/mole. (ii) If the interatomic planar spacing, d, in the sample above is 2.96 x 1010 m, determine the angle at which the first Bragg reflection will occur from the (111) plane if x-radiation of wavelength 1.52 x 1010 m is used for the analysis. (c) Give two uses of pure copper and two commercial applications of copper alloys.

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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(a) Explain the fotlowing teminologies: i. Crystallinity ii. Allotropy iii. Polymorphism iv. Coordination number 31Page (b) Copper crystallises as FCC (face centred cubic). Given that the atomic radius and density of a given copper sample are 1.28 x 1010 m and 8.98 x 10' kg/m' respectively, carry out the following: Calculate the mass of the copper sample. Take Avogadro's number, NA = 6.023 x 1023 atoms/mole. (i) If the interatomic planar spacing, d, in the sample above is 2.96 x 1010 m, determine the angle at which the first Bragg reflection will occur from the (111) plane if x-radiation of wavelength 1.52 x 1010 m is used for the analysis. (ii) (c) Give two uses of pure copper and two commercial applications of copper alloys.
Transcribed Image Text:(a) Explain the fotlowing teminologies: i. Crystallinity ii. Allotropy iii. Polymorphism iv. Coordination number 31Page (b) Copper crystallises as FCC (face centred cubic). Given that the atomic radius and density of a given copper sample are 1.28 x 1010 m and 8.98 x 10' kg/m' respectively, carry out the following: Calculate the mass of the copper sample. Take Avogadro's number, NA = 6.023 x 1023 atoms/mole. (i) If the interatomic planar spacing, d, in the sample above is 2.96 x 1010 m, determine the angle at which the first Bragg reflection will occur from the (111) plane if x-radiation of wavelength 1.52 x 1010 m is used for the analysis. (ii) (c) Give two uses of pure copper and two commercial applications of copper alloys.
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