12 Quantum and nuclear physics

12.1a The photoelectric effect

12.1b Matter waves

12.1c The Bohr Model

12.1d Schrödinger and Heisenberg

12.1e Pair production & annihilation

12.2a Nuclear radius and density

12.2b Electron diffraction

12.2c Nuclear energy levels

12.2d Negative beta decay

12.2e The law of radioactive decay