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Is it possible to observe a 4-fold axis of symmetry in a monoclinic crystal? Why or why not?
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- How are vacancies created in a crystal?How does duality manifest in symmetry operations in crystallography? Provide examples of crystallographic duals.1. Complete the blank sections of the following table of crystal structure characteristics. Please do not re-copy the table; state your Answers in a list in the order shown. Diamond Simple sc Body-Centered Face-Centered fcc bcc Volume of conventional a3 a3 Answer 4 a3 cubic unit cell Nearest-neighbour distance, in terms of a Maximum Packing Answer 1 Answer 5 a/(2)/2 a Answer 2 Answer 3 0.68 Answer 6 Volume
- In cubic crystals, crystallographic directions are arranged in families. Which of the following directions does not belong to the family <110>? a) [1 0 1] b) [11 0] c) [10 1̅] d) None of the mentionedWhy is it valid to represent the structure of a crystalline solid by the structure of its unit cell?How is the chemical bonding between atoms of magnesium (Mg) different from the chemical bonding within a crystal of aluminum iodide (All3)?
- When an FCC material has high stacking fault energy, do you expect widely-spaced or closely-spaced leading and trailing partial dislocations? Do you expect wavy or planar glide? Briefly explain both trends.Discuss how the concept of reciprocal lattice helps in the Ewald construction and detemination of crystal structure.Graphite has hexagonal crystal lattice which contains four atoms per unit cell at positions of (0 0 0), (1/3 2/3 0), (O 0 1/2) and (2/3 1/3 1 12). Show that the structure factor is given by the following equations. Hint: e^ix+e^- .ix=2cosx
- All unit cell structures have six sides. Can crystals of a solid hay than six sides ? Explain your answerUsing drawing and Explanation. P-Si Show (Draw) the 2D atomic crystal structure of p type silicon. Do Both fixed and mobile charges should be clearly observable.A cubic sample weighing 0.5524 g is composed of Titanium with a 2,0 at% single element impurity. Its crystal structure is BCC (APF = 0.68, n 2, CN = 8), and when viewed under a microscope, it can be seen that the sample contains 15,000,000 unit cells along any given edge of the cube. What element is the impurity? %3D n 3=