Atom of Ernest Rutherford, bombarded a metal foil with alpha particles to observe how they scattered. They expected all the alpha particles to pass straight through with little deflection, because Thomson's model said that the charges in the atom are so diffuse that their electric fields could not affect the alpha particles much. However, Geiger and Marsden spotted alpha particles being deflected by angles greater than 90°, which was supposed to be impossible according to Thomson's model. To explain this, Rutherford proposed that the positive charge of the atom is concentrated in a tiny nucleus at the center of the atom.
Children of the Atom (supplement) Children of the Atom (supplement) Children of the Atom is a role-playing game supplement published by TSR in 1986 for the "Marvel Super Heroes" role-playing game. "Children of the Atom" is a supplement for the Advanced Set describing all of Marvel's mutant heroes and villains. "Children of the Atom" is an encyclopedia of mutant-kind, detailing their friends, enemies, homes and equipment. It includes a miniscenario, "Dreamchild." MA1 "Children of the Atom" was written by Kim Eastland and was published by TSR, Inc., in 1986 as a 96-page book with an outer folder. Pete Tamlyn reviewed "Children of the Atom" for