1. Franck-Hertz experiment
2. X-ray diffraction on crystals
3. Electron diffraction on polycrystalline materials
4. Rutherford experiment
5. Absorption of ionizing radiation
6. Statistical character of radioactive decay
2. X-ray diffraction on crystals
3. Electron diffraction on polycrystalline materials
4. Rutherford experiment
5. Absorption of ionizing radiation
6. Statistical character of radioactive decay