The Periodic Table: Trends of Atomic Properties Lecture 24
Aufbau principle is an approach to determine the electron configurations of the elements starting at the beginning of the periodic table and adding one electron per element to the lowest energy orbital available.
All physical and chemical behavior of the elements is based ultimately on the electron configurations of their atoms.
Properties are periodic if they generally increase or decrease in a recurring manner throughout the periodic table.
Properties directly influenced by electron configuration: