Stable atoms have as many electrons as they do protons. How do these electrons orient themselves around the nucleus? They fill their electron orbitals by the aufbau principle.: The Aufbau Principle - Using the Aufbau Principle
For all the writers out there it can be difficult finding the perfect emotion for your character, whether your character is sad, angry, or surprised those words can seem to get a bit boring. so i introduce the Writer's Wheel of emotion. Enjoy - J.