Radioactive Half-Life

The video tutorial explains how radioactivity can make substances more stable through a process called radioactive decay, where unstable isotopes emit radiation to become stable elements. It uses Molybdenum 99 as an example, which decays into Technetium and then into stable Ruthenium 99. The concept of half-life is introduced as a measure of the time it takes for a substance's radioactivity to decrease by half, highlighting its importance in determining when a radioactive substance becomes safe. The variability of half-lives across different materials is also discussed, emphasizing the need for safe storage of radioactive waste.

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