Quantum transitions

Quantum transitions refer to the process by which electrons in an atom move between different energy levels. When energy is absorbed (e.g., from light), an electron can jump to a higher energy state, a process called excitation. Conversely, if an electron gains enough energy to completely escape the atom, this is known as ionization. These transitions are fundamental to how atoms interact with energy and light, leading to phenomena such as color in gases and the functioning of lasers. Essentially, quantum transitions are the shifts in energy states that define how atoms operate and interact.