atomic structure

  Egg-lectrons and McLewis Structures: More Representations of Electron Arrangements in Atoms and Molecules Co-Authored with Ali Patel* *Bradley University, Peoria, Illinois

by Dean J. Campbell* *Bradley University, Peoria, Illinois

​Atomic theory is a common topic throughout any introductory chemistry course.

Quantum mechanics is a proverbially and quintessentially challenging topic.  It is the poster-child of difficulty in chemistry.

I know that many of you teach chemistry in a traditional order of topics -- atoms, bonding, reactions, stoichiometry, etc. However, I walked away from that order six years ago and started teaching in a chronological order when I began using Modeling Instruction in my classroom. During the second year of "walking in the footprints of the scient

The Aufbau Principle: the (n + l) Rule

I have a confession to make: I don’t really understand how to correctly predict the electronic configurations (EC) of every element and ion. 

When I was a novice modeler I was constantly searching for quality online video resources to share with my students.  I quickly discovered that YouTube was rife with explanatory science videos, but I had a hard time finding ones that fit with my classroom culture.