What Is an Unstable Isotope? Definition, Examples, and Uses

Learn what an unstable isotope is, how it decays, and its common applications in medicine, carbon dating, and nuclear energy.

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Unstable isotopes are atoms with a nucleus that has an imbalance of protons and neutrons, leading to radioactivity. These isotopes decay over time, emitting radiation to achieve a more stable state. Common examples include Carbon-14 and Uranium-238. They are often used in medical imaging, carbon dating, and as energy sources in nuclear reactors.

FAQs & Answers

  1. What makes an isotope unstable? An isotope is unstable when its nucleus has an imbalanced number of protons and neutrons, causing it to emit radiation as it decays toward a stable form.
  2. What are common examples of unstable isotopes? Common unstable isotopes include Carbon-14, used in carbon dating, and Uranium-238, used in nuclear reactors.
  3. How are unstable isotopes used in medicine? Unstable isotopes are used in medical imaging to trace bodily processes and diagnose conditions by emitting detectable radiation.

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For a deeper understanding of isotopes and their roles, explore our related videos on radioactive decay processes, carbon dating techniques, and medical imaging technologies utilizing unstable isotopes.

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