The plutonium drawing looks like a target with lots of holes in it - it actually depicts the electron configuration of plutonium ( [Rn] 7s2 5f 6 ) but is missing one dot in the second to last circle (it should have 8 in the sixth energy level instead of 7). The uranium drawing is more of a conventional logo of an atom. Beats me! The target analogy is all I can think of... Maybe that ties in to the cartoon's "political message". Steve |