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Chapter 4 Nuclear Chemistry

Chapter 4 Nuclear Chemistry. 4.1 Natural Radioactivity. Radioactive Isotopes. A radioactive isotope has an unstable nucleus emits radiation to become more stable can be one or more of the isotopes of an element. Nuclear Radiation. Nuclear radiation

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Chapter 4 Nuclear Chemistry

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  1. Chapter 4 Nuclear Chemistry 4.1Natural Radioactivity

  2. Radioactive Isotopes A radioactive isotope • has an unstable nucleus • emits radiation to become more stable • can be one or more of the isotopes of an element

  3. Nuclear Radiation Nuclear radiation • is the radiation emitted by an unstable atom • takes the form of alpha particles, neutrons, beta particles, positrons, or gamma rays

  4. Types of Radiation • Alpha () particle is two protons and two neutrons • Beta () particle is a high-energy electron • Positron (+) is a positive electron • Gamma ( ) ray is high-energy released from a nucleus

  5. Radiation Protection Radiation protection requires • paper and clothing for alpha particles • a lab coat or gloves for beta particles • a lead shield or a thick concrete wall for gamma rays • limiting the amount of time spent near a radioactive source • increasing the distance from the source

  6. Shielding for Radiation Protection

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