atom
smallest unit of a chemical element
nuclide
atomic species characterized by the specific constitution of the nucleus
helium atom
mathematical modeling of a helium atom
donor
dopant atom that, when added to a semiconductor, can form a n-type region
exotic atom
neutral composite particle with some components not found in normal atoms
Dumb
Wikimedia disambiguation page
central atom
central atom in a coordination complex, around which ligands are bound
Rydberg atom
excited atomic quantum state with high principle quantum number (n)
hydrogen-like atom
atomic nucleus with one electron that behaves like hydrogen
hydrogen atom
atom of element hydrogen