radioactive labelling
Quick Summary
Radioactive labeling, also known as using isotopic tracers, involves using radioactive atoms to track materials in chemical, biological, or physical systems. These radioactive isotopes, or radioisotopes, behave like the elements they represent but emit detectable radiation. This allows scientists to follow the movement and distribution of substances, even in extremely small quantities, down to a few atoms.1
Radioactive decay is the spontaneous process where unstable atomic nuclei emit energy and particles to become more stable. This decay happens at a predictable rate, characterized by the isotope's half-life. This property is crucial for applications like radiometric dating in Earth sciences and carbon-14 dating in archaeology, helping to determine the age of rocks, fossils, and artifacts. Radioactive tracers are also vital in environmental studies to track pollution and in biological research to understand metabolic processes.234
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