AQA 7408 A-Level Physics coverage of particles and radiation (3.2): the constituents of the atom, isotopes and nuclear stability, particles and antiparticles, the quark model and hadron/lepton classification, exchange particles and the four fundamental forces, Feynman diagrams, conservation laws in particle interactions, the photoelectric effect, atomic energy levels and line spectra, electron-atom collisions and the fluorescent tube, and wave-particle duality (de Broglie). Phase 2 will add the spec-3.2.1 introductory lessons and the spec-3.2.2 energy-levels and electron-collision lessons.
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