Beginning with an overview of how and why chemical bonding occurs, this program explains ionic bonding, describing the common properties of ionic compounds, the Lewis theory, electronegativity, the Pauling scale, ionization energy, and the importance of the valence shell. Using animated graphics throughout, the video also gives relevant information about the periodic table and how specific elements are involved in ionic bonds. A viewable/printable worksheet is available online. Part of the series All about Chemical Bonding. (8 minutes)