Gr. 5-8. From the Group 7 set of the Elements series, which also includes volumes on manganese, mercury, and nickel, this book introduces iodine. After discussing the structure of the iodine atom and its place on the periodic table, Gray considers its special characteristics, the history of its discovery, and its production and uses, particularly in the medical field. Like others in the series, this book ends with a chart of the periodic table, a glossary, and brief information on how iodine reacts with other substances. The color illustrations include well-designed, clearly labeled diagrams and many excellent photographs. A solid choice for science collections. Carolyn PhelanCopyright © American Library Association. All rights reserved