Answer to Question #99590 in General Chemistry for Marget

Question

Electron Configurations - Complete the box notations - What is a link between the last occupied subshell and location of the element on the periodic table?

Answer 1

Elements in each column have the same valence shell electron configurations, and the elements have some similar chemical properties. Similarity of valence shell electron configuration implies that we can determine the electron configuration of an atom solely by its position on the periodic table.