It was a dreary day in the microworld, particles bouncing around aimlessly. Sulfer sighed as she looked upon the familiar couples: Mr. and Mrs. NaCl bickering, Mrs. CO gassing on as usual while Mr. CO bobbed in silence. But when a new element crossed Sulfer's inevitable path, something about that day changed . . . and as their fields met, Sulfer knew that her charge would never be neutral again.