Starting with a summary of how and why chemical bonding occurs, this program explains key concepts of metallic bonding, using animated graphics to clarify the octet rule, the role of electrons in metallic properties such as shine and conductivity, and the categorization of elements in the periodic table. Viewers also learn about the different types of geometric arrangements, including body-centered cubic, face-centered cubic, and hexagonal close-packing. A viewable/printable worksheet is available online. Part of the series All about Chemical Bonding. (7 minutes)