Radionuclides, 1. Introduction

The article contains sections titled: 1. Nucleons 2. Timeline of Discoveries in Radioactivity 3. Nuclides and Radionuclides 4. The Law of Radioactive Decay 5. Interaction between Radiation and Matter 5.1. Interaction between Gamma Quanta and Matter 5.2. Interaction between Electrons and Matter 5.3. Interaction between Positrons and Matter 5.4. Interaction between Alpha Particles and Matter 5.5. Interaction between Neutrons and Matter 5.6. Interaction between Neutrinos and Matter 6. The Biological Effects of Radiation and Radionuclides 6.1. Physical Radiation Effects 6.2. Molecular Radiation Effects 6.2.1. Radiation Damage to DNA 6.2.2. Repair of DNA Damage in the Cell 6.3. Cellular Radiation Effects 6.4. Radiation Effects on Tissue 6.5. Radiation Hazards 6.5.1. Radiation Carcinogenesis 6.5.2. Hereditary Radiation Effects 6.5.3. Teratogenic Radiation Effects 6.6. Radionuclides 6.6.1. Radionuclides of Concern in Radiation Protection 6.6.2. Exposure of the Population due to Natural and Artificial Radioisotopes 6.7. Basic Principles of Radiation Protection