The electron configuration of an atom describes how its electrons are distributed among the various atomic orbitals and energy levels. It follows a specific notation that reflects the arrangement of electrons within an atom. The electron configuration notation is written using numbers and letters to represent the principal energy levels (n) and the sublevels (s, p, d, f), respectively. Each sublevel can hold a specific number of electrons: the s sublevel holds a maximum of 2 electrons, the p sublevel holds up to 6 electrons, the d sublevel can hold 10 electrons, and the f sublevel accommodates 14 electrons. For instance, the electron configuration of carbon (C) is 1s² 2s² 2p²: 1s² represents the 1s orbital with 2 electrons. 2s² represents the 2s orbital with 2 electrons. 2p² represents the 2p orbital with 2 electrons. This notation system helps understand an element’s behavior, chemical properties, and the organization of electrons within an atom’s orbitals and energy levels.