| Part of speech | common noun |
|---|---|
| Gender | masculine |
| Catalan | radi |
|---|---|
| Dutch | radium |
| English | radium |
| Esperanto | radiumo |
| French | radium |
| German | Radium |
| Greek | ράδιο |
| Icelandic | radíum; radín |
| Portuguese | rádio |
| Saterland Frisian | Radium |
| Spanish | radium; radio |
| Sranan | radimi |
| Tagalog | radyum |
| Turkish | radyum |