| atom | a heavy gray-white metallic element |
|---|---|
| atom | a rare heavy polyvalent metallic element that resembles manganese chemically and is used in some alloys |
| atom | a hard brittle blue-gray or blue-black metallic element that is one of the platinum metals |
| atom | a heavy brittle metallic element of the platinum group |
| atom | a heavy precious metallic element |
| atom | a soft yellow malleable ductile (trivalent and univalent) metallic element |
| atom | a nonmetallic bivalent element that is normally a colorless odorless tasteless nonflammable diatomic gas |
| atom | a heavy silvery toxic univalent and bivalent metallic element |
| atom | a soft gray malleable metallic element that resembles tin but discolors on exposure to air |
| atom | a soft heavy toxic malleable metallic element |
| atom | a heavy brittle diamagnetic trivalent metallic element (resembles arsenic and antimony chemically) |
| atom | a radioactive metallic element that is similar to tellurium and bismuth |