Foundations of Atoms, Isotopes, and Nuclear Reactions

The behavior of all matter is governed by the structure of the atom. Understanding subatomic particles, atomic stability, and nuclear forces is essential for foundational science and modern technology. This course provides a comprehensive, text-based introduction to atomic structure and nuclear physics. By the end, you will be able to explain the evolution of atomic models, calculate decay rates, and understand the practical applications of nuclear energy and radiation. What you'll learn: * Understand the historical progression of atomic models, from Thomson and Rutherford to the quantum mechanical view of electron orbitals. * Analyze the properties of isotopes, isobars, and isotones, and calculate atomic mass, binding energy, and mass defect. * Learn the principles of radioactive decay, including alpha, beta, and gamma emission, and practice solving half-life problems. * Apply the basic concepts of quantum numbers (principal, azimuthal, magnetic, and spin) to describe electron states within an atom. * Grasp the fundamental differences between nuclear fission and fusion and their roles in energy generation and astrophysical processes. The course begins with defining key terminology and foundational concepts of matter and energy. We then progress systematically through atomic models, nuclear stability, radioactive processes, and essential calculations, reinforcing understanding with written exercises. This course is designed for absolute beginners interested in physics or chemistry and requires no prior knowledge of quantum mechanics or advanced mathematics. Start building your foundational knowledge of the subatomic world today.