atomic shell model

The atomic shell model describes how electrons are arranged around an atom’s nucleus in specific energy levels called shells. These shells are like layers that can hold a certain number of electrons, with electrons naturally occupying the lowest available shells. The arrangement of electrons influences the atom’s properties, including how it reacts chemically. Think of it as a series of invisible containers stacked around the nucleus, with electrons filling these containers from the innermost to outer shells, contributing to the atom's stability and behavior.