Orbital Filling Diagram - Part 2 - 3 RULES required

You will see the three rules that govern how electrons are limited as to where they can go in an atom. I actually sing a song to help you remember the Aufbau, Pauli Exclusion Principle, and Hund's rule. I also do a demonstration of electron spin using 2 magnets to help explain the Pauli Exclusion Principle.