| Element no. 77 |
| Atomic number 77 |
| Platinumlike metal |
| Platinum-group element |
| Metal in surgical tools |
| Corrosion-resistant metal |
| Element named for the rainbow |
| Substance used by watchmakers |
| Most corrosion-resistant metal |
| Metal in the points of gold pens |
| Element often found in meteorites |
| Metal used for points of gold pens |
| Metallic element used in spark plugs |
| Heavy brittle metal used in alloys, Ir |
| Extremely rare metal with atomic number 77 |
| Heavy corrosion-resistant metal, used in alloys |
| Metal named for the Greek goddess of the rainbow |
| Metal between osmium and platinum on the periodic table |