What is atomic physics?

Atomic physics is a branch of physics that studies atoms as isolated systems, primarily focusing on the behavior, properties, and interactions of electrons and the atomic nucleus. It explores topics such as electron configurations, ionization, atomic spectra, and how atoms interact with electromagnetic fields. Atomic physicists often investigate phenomena like energy levels, atomic transitions, and the effects of external forces on atoms. This field is fundamental in understanding the structure of matter and has applications in areas such as quantum computing, laser technology, and spectroscopy.