The atomic weight, density, and atomic radius · for three hypothetical alloys are listed in the ´ following table. For each, determine whether its crystal structure is FCC, BCC, or simple cubic and then justify your determination. A simple cubic unit cell is shown in Figure 3.24. Atomic Radius Atomic Weight (g/mol) Density Alloy (g/cm³) (пт) 77.4 8.22 0.125 107.6 13.42 0.133 127.3 9.23 0.142 ABC

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Q: tassium chloride adopts the rock salt-type (NaCl-type) structure with a face-centred cubic unit cell…

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Q: What is the charge on copper in the compound whose unit cell is shown below? Cu

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Q: The element Fe has bcc packing with a body-centered cubic unit cell. The density of iron is 7.86…

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Q: For the hcp (hexagonal close packed) structure, the  c/a ratio (height of the unit cell divided by…

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Q: Perovskite is a compound with a cubic unit cell and has a strontium atom at the center of the cell,…

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Q: *Lead has an atomic radius 0f 0.181 nm. It crystallizes with a face-centered cubic unit cell. What…

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Q: The structure of the unit cell when CaF2 crystallizes is shown below: How many Ca* ions are present…

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Crystal Lattices and Unit Cell

Consider a crystal. The regular and repeating pattern of constituent particles is the most distinguishing feature of crystalline solids. A crystal lattice is formed when these particles are replaced with representative points. The three-dimensional arrangement of constituent particles is known as a crystal lattice. Unit cell is that the smallest portion of a space lattice which when repeated in several directions, generate the whole lattice. Unit cell is a building block of a lattice. It is the smallest unit of cell.