Mark Benvenuto is a Professor of Chemistry at the University of Detroit Mercy, in the Department of Chemistry and Biochemistry, and a Fellow of the American Chemical Society. He has also been an advisor to the UDM ACS Student Members Chapter for many years. Benvenuto received a B.S. in chemistry from the Virginia Military Institute and, after several years in the Army, a PhD. in inorganic chemistry from the University of Virginia. After a postdoctoral fellowship atthe Pennsylvania State University, he joined the faculty at the University of Detroit Mercy in 1993.Tracy Williamson received her B.A. in chemistry in 1985 from Hamilton College and her Ph.D. in organic chemistry in 1992 from the University of Delaware. Tracy is currently the immediate past chair of the American Chemical Society (ACS) Division of Environmental Chemistry and is a member of the ACS Committee on Nomenclature, Terminology, and Symbols. She is a fellow of the American Chemical Society and was formerly a member of the ACS Committee on Environmental Improvement. Tracy is currentlythe Chief of the Industrial Chemistry Branch in the Office of Pollution Prevention and Toxics at the U.S. Environmental Protection Agency.

• Preface 1. Lost Elements: The All-American Errors 2. The Periodic Table of the Elements: A Review of the Future3. How the Periodic Table of Available Elements Shaped Natural History 4. An Elemental History of the Early Universe 5. Building Classes of Similar Chemical Elements from Binary Compounds and Their Stoichiometries 6. It's All in the Sludge: Elements That Are Always By-Products 7. Chemistry's Decision Point: Isotopes 8. Analytical Methodologies for Arsenic, Selenium, and Mercury: A Historical Perspective 9. Recent Advancements in the Radiochemistry of Elements Pertaining to Select Nuclear Materials and Wastes 10. Element 118: Teaching A New Element to New Students 11. Chemicals, Their Element Names, and Their Place in Society. Also Known as "Why Did I Choose To Name My Organization Palladium Science Academy?"Editors' Biographies Indexes