CHEM 001B Lecture Notes - Lecture 12: Bravais Lattice, Crystal Structure, Tantalum
Document Summary
Unit cell : basic repeating unit of the arrangement of particles in a crystalline solid. A unit cell shows the locations of lattice points repeating in all directions. When metal atoms are arranged with spheres in one layer directly above or below spheres in another layer, the lattice structure is called simple cubic. An atom in a simple cubic lattice structure contacts six other atoms, so it has a. A simple cubic lattice unit cell contains one-eighth of an atom at each of its eight. Cubic unit cells of metals show the locations of lattice points and metal coordination number of 6 corners, so it contains one atom total atoms located in the unit cell. In a body-centered cubic structure, atoms in a specific layer do not touch each. Each atom touches four atoms in the layer above it and four atoms in the other.
