Ah hah! I neutralized it by nuking it... Now I have to clean up a much bigger mess
*sounds of Manhattan being vaporized by the power of 50 atom bombs*
*munch* *munch* *munch* *Demon Core Noises* *silence*
99.9999999999996%, that is the amount of empty space in an atom compared to actual matter. And the vast majority of the actual matter is protons and neutrons, so less than one hundred trillionth of an atom is electrons. one cube of pure electron would become a naked singularity, and that is very bad