The French revolutionaries killed all of the people of prominent position, including the king and queen.
We know that electrons are negatively charged, so we need to explain why electrons are orbiting the atom in the first place. The only logical explanation for this is by saying that there is a positive charge in the atom somewhere that attracts the negatively charged electrons to the atom.
Probably use popsicle sticks for fences, paper clips for barbed wire, carboard for the places they lived in.