Electronic Structure

question of electronic configuration Why is a study of electronic structure and the periodic table a part of general chemistry? The original periodic table was based on observations of chemical reactions and physical properties. The elec¬tronic structure of atoms explains the form of the periodic table. What do you already know about electronic structure and the periodic table? You know that the electrons move about rapidly in the space around the nucleus. They are arranged in shells of varying energy and average distance from the nucleus, Because only certain values are allowed for quantum numbers, only the following subshells are possible: