value, 7.87 g/cm. Rhodium has an atomic radius of 0.1345 nm and density of 12.41 g/cm³. Determine whether it has an FCC or BCC crystal structure. The unit cell for tin has tetragonal symmetry, with a and b lattice parameters of 0.583 4.

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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.