Quiz 07 - Crystal Structures - Part 1_ Mat E 273.pdf - Quiz...

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12/6/2018 Quiz 07 - Crystal Structures - Part 1: Mat E 273 1/13 Quiz 07 - Crystal Structures - Part 1 Due Sep 12 at 12pm Points 45 Questions 14 Available Sep 5 at 12pm - Sep 12 at 12pm 7 days Time Limit None Allowed Attempts 3 This quiz was locked Sep 12 at 12pm. A±empt History Attempt Time Score LATEST Attempt 1 5,274 minutes 45 out of 45 Score for this attempt: 45 out of 45 Submitted Sep 10 at 12:50pm This attempt took 5,274 minutes. 13 / 13 pts Question 1 View the slides and/or visit the following link to see information that is helpful for answering this question: (crystal_structure) ((crystal_structure)) These tables list the elements and their equilibrium crystal structures under Standard Temperature and Pressure (STP) conditions* (0 C and 1 bar of pressure, which is slightly less than 1 atmosphere). For elements that are not solid under STP conditions, the equilibrium crystal structure at the element's 1-bar melting point is listed. Note that most of the elements won't change crystal structure between room temperature and 0 C. Also, the elements listed below are used frequently in the course, so their standard structures are worth memorizing, but I will provide a periodic table for the exam (see the tentative reference sheet linked here () ). Also be aware that some of these elements will change their crystal structure if temperature and/or pressure are sufficiently changed. o o
12/6/2018 Quiz 07 - Crystal Structures - Part 1: Mat E 273 2/13 We'll explore this in more detail at the end of unit 1, and on the exam I would provide relevant phase diagrams to reference. Match the following pure elements with their equilibrium crystal structures under these standard conditions. Options can be used more than once, or perhaps not at all. SC - Simple Cubic BCC - Body-Centered Cubic FCC - Face-Centered Cubic HCP - Hexagonal Close-Packed DC - Diamond Cubic MON - Monoclinic