Template:Infobox atom
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| Atom | |
|---|---|
| Helium atom ground state An illustration of the helium atom, depicting the nucleus (pink) and the electron cloud distribution (black). The nucleus (upper right) in helium-4 is in reality spherically symmetric and closely resembles the electron cloud, although for more complicated nuclei this is not always the case. The black bar is one angstrom (Script error: No such module "val". or Script error: No such module "val".). | |
| Classification | |
| Smallest recognized division of a chemical element | |
| Properties | |
| Mass range | Script error: No such module "val". to Script error: No such module "val". |
| Electric charge | zero (neutral), or ion charge |
| Diameter range | 62 pm (He) to 520 pm (Cs) (data page) |
| Components | Electrons and a compact nucleus of protons and neutrons |
