Relate unit cell dimensions, density, and number of atoms per unit cell for a cubic unit cell. Close Problem The element nickel is found to crystallize in a cubic lattice, with an edge length of 352.4 pm. If the density of solid nickel is 8.908 g/cm³, how many Ni atoms are there per unit cell? atoms

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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.