11 The density of PbSe at 25 °C is 8.27 g/cm³. What is the length (pm) of the side of the PbSe unit cell. (Atomi Pb = 207.2 amu; Se = 78.96 amu) NOTE: Report answer with 1 decimal place. Type your answer... Previous

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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.