Final answer:
The condensed electron configuration includes the symbol of the noble gas that is adjacent to the element on the periodic table, followed by the remaining valence electron configuration.
Step-by-step explanation:
The correct answer is A) noble; adjacent. A condensed electron configuration includes the element symbol of the noble gas that is adjacent to the relevant element in square brackets, followed by the configuration of the energy level being filled. This method is also known as an abbreviated electron configuration, which represents the core electrons of an atom up to the noble gas of the previous period on the periodic table, followed explicitly by the valence electrons for the element in question. For instance, the condensed electron configuration for phosphorus (P) is [Ne]3s²3p³, where [Ne] represents the core electrons that match the electron configuration of the noble gas neon, which is directly preceding phosphorus on the periodic table.