Science, Tech, Math › Science Group Definition Chemistry Glossary Definition of Group Print Periodic Table Close-Up. Daniel Hurst Photography/Getty Images Science Chemistry Chemical Laws Basics Molecules Periodic Table Projects & Experiments Scientific Method Biochemistry Physical Chemistry Medical Chemistry Chemistry In Everyday Life Famous Chemists Activities for Kids Abbreviations & Acronyms Biology Physics Geology Astronomy Weather & Climate By Anne Marie Helmenstine, Ph.D. Anne Marie Helmenstine, Ph.D. Chemistry Expert Ph.D., Biomedical Sciences, University of Tennessee at Knoxville B.A., Physics and Mathematics, Hastings College Dr. Helmenstine holds a Ph.D. in biomedical sciences and is a science writer, educator, and consultant. She has taught science courses at the high school, college, and graduate levels. Learn about our Editorial Process Updated on April 22, 2018 Group Definition: In chemistry, a group is a vertical column in the Periodic Table. Groups may be referred to either by number or by name. For example, Group 1 is also known as the Alkali Metals. Cite this Article Format mla apa chicago Your Citation Helmenstine, Anne Marie, Ph.D. "Group Definition." ThoughtCo, Aug. 26, 2020, thoughtco.com/definition-of-group-in-chemistry-604518. Helmenstine, Anne Marie, Ph.D. (2020, August 26). Group Definition. Retrieved from https://www.thoughtco.com/definition-of-group-in-chemistry-604518 Helmenstine, Anne Marie, Ph.D. "Group Definition." ThoughtCo. https://www.thoughtco.com/definition-of-group-in-chemistry-604518 (accessed March 28, 2024). copy citation