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
Atom (Ray Palmer) to restore the natives of Kandor to their full height, but is instead tricked into reviving a twisted Kryptonian cult, whose leader proceeds to crush Palmer and Kandor. Other re-imaginings of the Atom include an appearance in "League of Justice", an Elseworlds story portraying the Justice League in a "The Lord of the Rings"-type story where the Atom was recast as a wizard/fortune teller called "Atomus The Palmer". In "", Ray Palmer worked with a science consortium whose members at one point included Thomas Edison and Nikola Tesla. In "JLA: Rock Of Ages", the Atom is part of what remains