CHMA10H3 Chapter Notes - Chapter 19: Radioactive Tracer, Strong Interaction, Film Badge Dosimeter
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CHMA10H3 Full Course Notes
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Chma10 - chapter 19: radioactivity and nuclear chemistry. Antoine-henri becquerel (1852-1908) discovered uranic rays by testing is phosphorescent minerals give off x-rays. Uranic rays: are the rays that were produced by uranium and certain minerals that penetrate matter. She discovered that rays were also emitted from elements other than uranium. Radioactivity: is the release of tiny, high-energy particles or gamma rays from an atom. Electron capture: a low energy electron is pulled into the nucleus. It isn"t a particle like alpha or beta rays. They cause phosphorescent chemicals to glow due to scintillation counter. Diagnosis: nuclear radiation is used to visualize test structures in your body to see if they"re operating properly. Therapy: nuclear radiation can be used to treat diseases because the radiation is ionizing, which attacks unhealthy tissue. It is the entire mass of an atom. Very small volume compared to the volume of an atom. Composed of protons and neutrons packed tightly together.
