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The lattice structure is the regular structure of metals. The lattice structure is characterized by the unit cell. In this video we take a closer look at the structure of the body-centered cubic, the face-centered cubic and the hexagonal close-packed lattice. 00:00 Structure of metals 00:37 Metal bond 01:24 Lattice constant 03:53 Unit cell 05:27 Body-centered cubic lattice (bcc) 07:34 Hexagonal close-packed lattice (hdp) 09:31 Hexagonal lattice structure of graphite (hex) 10:28 Face-centered cubic lattice (fcc)