Consider a bcc lattice, with cube side length a = 0.83 nm. What is (approximately) the linear density along the close-packed direction? a. 1.391 nm-1 b. 0.830 nm-1 c.   1.205 nm-1   d. 0.852 nm-1

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Q: atomic radius is 0.1430 nm calculate the planer density of (211) plane at BCC structure

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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.