Viewers see that chemical bonds are the key to understanding how elements combine. The differences between ionic and covalent bonds are clearly presented using vivid graphics and dynamic footage. Students see how valence electrons interact among atoms to form compounds, and learn how simple Lewis structures can help describe how easily an element will react. Students explore the significance of the arrangement of the elements and are shown how to predict the behaviour of an element from its position in the periodic table.

Teacher's guide available under Additional tag. Optional English and Spanish language tracks.