3p6

3p6 is a term used in the field of chemistry to describe a specific configuration of electrons in an atom or molecule. The notation "3p6" refers to the third principal energy level (n=3) and the p subshell, which can hold a maximum of six electrons. In this configuration, all six electrons in the p subshell are present, resulting in a full p subshell. This is a stable configuration, as it follows the Aufbau principle, which states that electrons fill the lowest available energy levels before occupying higher ones. The full p subshell configuration is often associated with noble gases, which have a stable electron configuration and do not readily react with other elements. The 3p6 notation is commonly used in electron configuration diagrams and periodic tables to represent the arrangement of electrons in an atom.