Once upon a time Quantum

Focusing on the structure and interactions of atoms, this field examines how electrons are organized around the nucleus and how these configurations can change. It encompasses ions and neutral atoms, often linking to broader themes such as nuclear power and weapons. While atomic physics centers on the atom as a system of electrons and a nucleus, it is distinct from nuclear physics, which explores nuclear reactions. The discipline is frequently integrated with atomic, molecular, and optical physics, highlighting its interconnected nature within the scientific community.