Chapter 13: The arrangement of electrons within atoms is then tied to the most useful tool in all of chemistry, the Periodic Table. A number of periodic trends are covered. Scrolling across the interactive periodic table allows students to see the changes in the size of atoms within groups and periods of the Periodic Table. Students are quizzed throughout the section leading them to formulate hypotheses regarding these trends. This product uses the interactive capabilities of a computer. The chapter has an embedded end-of-chapter quiz, uses graphics, animations, user interactivity or embedded video on almost all pages. This product is designed to provide bite-sized pieces of information in an effort to enhance the scientific literacy of our next generation, not to overwhelm them with sheer quantity of information. Chapter 13 section titles: Electron Patterns • Sizes of Atoms • Size of an Ion Versus an Atom • Ionization Energies • Removal of Successive Electrons • Electronegativity • Electron Affinity • Periodic Trends Quiz. This product works both on a Macintosh or PC computer.