Here's a breakdown:
* Isotopes: Atoms of the same element with the same number of protons but different numbers of neutrons.
* Radioactive isotopes: Isotopes with unstable nuclei. The instability is due to an imbalance in the ratio of protons to neutrons.
* Decay: Radioactive isotopes release energy and particles to transform into a more stable state. This process is called radioactive decay.
Examples of radioactive isotopes and their decay products:
* Uranium-238 decays through a series of steps to eventually become lead-206.
* Carbon-14 decays into nitrogen-14.
* Iodine-131 decays into xenon-131.
Key points about radioactive decay:
* Half-life: The time it takes for half of the radioactive atoms in a sample to decay. Each radioactive isotope has its own specific half-life.
* Types of decay: There are several types of radioactive decay, including alpha decay, beta decay, and gamma decay. Each type involves the emission of different particles and energy.
* Applications: Radioactive isotopes have many applications in medicine, industry, and research, such as medical imaging, dating fossils, and tracing chemical reactions.
Note: Not all isotopes are radioactive. Some isotopes are stable and do not decay.
