Nuclear Physics — Structure, Radioactivity, Fission & Fusion Explained | Chapter 43 of University Physics
Nuclear Physics — Structure, Radioactivity, Fission & Fusion Explained | Chapter 43 of University Physics Chapter 43 delves into the heart of the atom—its structure, the forces binding protons and neutrons, how nuclei decay, and how we harness nuclear reactions for energy. This guide provides a clear, concise overview of concepts from binding energy to controlled fission and stellar fusion. Watch the full video summary on YouTube for animated diagrams and real-world examples. Nuclear Properties & Structure Composition: Nuclei contain Z protons and N neutrons (A = Z + N). Size & Density: Radii scale as R = R₀·A 1/3 ; nuclei are extremely dense (~10¹⁷ kg/m³). Isotopes: Same Z, different N; magnetic moments of nucleons underlie NMR and MRI. Binding Energy & Nuclear Models Binding energy (E B ) equals the mass defect times c² and peaks near A≈60, indicating maximum stability. Models include: Liquid-Drop Model: Uses volume, surface, Coulomb, as...