* Isotope: An isotope of an element is an atom that has the same number of protons (and therefore the same atomic number) but a different number of neutrons. This means they have the same chemical properties but different atomic masses.
* Unstable Nucleus: The nucleus of a radioactive isotope contains an imbalanced ratio of protons and neutrons, making it unstable. This instability causes the nucleus to decay, releasing energy and particles in the process.
Here's what happens during radioactive decay:
* Radioactive Decay: The unstable nucleus undergoes a transformation, emitting particles (like alpha, beta, or gamma radiation) and energy in the process.
* Transforming into a Different Element: Radioactive decay can sometimes result in the atom transforming into a different element. For example, carbon-14 decays into nitrogen-14.
Key points about radioactive isotopes:
* They emit radiation: This radiation can be harmful to living organisms in high doses.
* They have a half-life: This is the time it takes for half of the radioactive atoms in a sample to decay. Half-lives can range from fractions of a second to billions of years.
* They have various applications: Radioactive isotopes are used in medical imaging, cancer treatment, dating fossils, and tracing the movement of substances.
Let me know if you have any other questions!
