Halide Ion Definition in Chemistry

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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.
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Updated on August 11, 2018

What is a halide ion? The name halide comes from the element halogen. A halide ion is a singlet halogen atom, which is an anion with a charge of -1.

Examples

F-, Cl-, Br-, I-

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Helmenstine, Anne Marie, Ph.D. "Halide Ion Definition in Chemistry." ThoughtCo, Jun. 25, 2024, thoughtco.com/definition-of-halide-ion-in-chemistry-604524. Helmenstine, Anne Marie, Ph.D. (2024, June 25). Halide Ion Definition in Chemistry. Retrieved from https://www.thoughtco.com/definition-of-halide-ion-in-chemistry-604524 Helmenstine, Anne Marie, Ph.D. "Halide Ion Definition in Chemistry." ThoughtCo. https://www.thoughtco.com/definition-of-halide-ion-in-chemistry-604524 (accessed July 20, 2024).