Atom the nucleus defines to what chemical element the atom belongs: for example, all copper atoms contain 29 protons. The number of neutrons defines the isotope of the element. The number of electrons influences the magnetic properties of an atom. Atoms can attach to one or more other atoms by chemical bonds to form chemical compounds such as molecules. The ability of atoms to associate and dissociate is responsible for most of the physical changes observed in nature and is the subject of the discipline of chemistry. The idea that matter is made up of discrete units is a very old
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