the smallest particle of a chemical element that can exist
atomic particles as a source of nuclear energy
a bomb which derives its destructive power from the rapid release of nuclear energy by fission of heavy atomic nuclei, causing damage through heat, blast, and radioactivity
an atom in which inner-shell electrons are missing, usually as a result of electrical excitation
informal term for particle accelerator.
an atom in a highly excited state in which one electron has almost sufficient energy to escape. Atoms, usually hydrogen atoms, in this Rydberg state are used in atomic research
bomba f atomica
fisionar el átomo