quiz1.docx

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Department
Materials Science and Engineering
Course
MATLS 1M03
Professor
Hatem Zurob
Semester
Winter

Description
2 Question 1  The centres of a cation with a valence of + (2.0000x10^0) and an anion with a valence of ­ (2.00x10^0) are separated by a distance of .(8.7310x10^0) nm (Calculate the force of attraction between them in N. (Remember, the force of attraction is positive, while the force of repulsion is negative  Note: This is a review problem. The information needed to solve this question appears in Chapter 2 "Atomic Structure and Interatomic Bonding" .of the textbook Use scientific notation. Number of significant figures: 3 :Answer 1.21x10^­11 View Feedback Question Set A 1 Question 2 .The following feature is not one of the characteristics of ionic materials Thermally insulative Electrically insulative (Tough (i.e. ductile Hard Brittle View Feedback Question Set B 0 Question 3 ?What is the predominant type of bonding within a polymer chain Ionic Hydrogen Covalent Van der Waals Metallic View Feedback Question Set C 1 Question 4 ?The drawing below represents the unit cell for which crystal structure (Face­Centred Cubic (FCC (Body­Centred Cubic (BCC (Hexagonal Close­Packed (HCP (Atomic­Centred Cubic (ACC Simple Cubic View Feedback Question Set D 1 Question 5 ?How many atoms per unit cell does an FCC (face­centred cubic) crystal structure have 2 3 4 5 .None of the above View Feedback 1 Question 6 ?What is the coordination number of an FCC (face­centred cubic) crystal structure 6 8 10 12 .None of the above View Feedback Question Set E 1 Question 7 ?Which of the following are examples of materials having BCC (body­centred cubic) crystal structures at room temperature magnesium, titanium, zinc chromium, iron, tungsten gold, aluminum, copper View Feedback Question Set F 1 Question 8 :Choose the correct indices for the direction shown below (Hint:  The arrow goes 1 unit in the negative z direction) View Feedback 1 Question 9 :Choose the correct indices for the direction shown below (Hint:  The dotted line intersects the y­axis as 1/2) [022] [012] [1/2 1/2 0] [1 1/2 0] [011] View Feedback Question Set G 1
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