| Lëtzebuergesch | ltz-000 |
| radium | |
| العربية | arb-000 | راديوم |
| bosanski | bos-000 | radijum |
| български | bul-000 | радий |
| català | cat-000 | radi |
| čeština | ces-000 | radium |
| 普通话 | cmn-000 | 镭 |
| lingua corsa | cos-000 | radiu |
| dansk | dan-000 | radium |
| Deutsch | deu-000 | Radium |
| eesti | ekk-000 | raadium |
| ελληνικά | ell-000 | ράδιο |
| English | eng-000 | radium |
| Esperanto | epo-000 | radiumo |
| suomi | fin-000 | radium |
| français | fra-000 | radium |
| galego | glg-000 | radio |
| Srpskohrvatski | hbs-001 | radijum |
| עברית | heb-000 | רדיום |
| hrvatski | hrv-000 | radij |
| magyar | hun-000 | rádium |
| արևելահայերեն | hye-000 | Ռադիում |
| Ido | ido-000 | radiumo |
| interlingua | ina-000 | radium |
| bahasa Indonesia | ind-000 | radium |
| íslenska | isl-000 | radín |
| italiano | ita-000 | radio |
| 日本語 | jpn-000 | ラジウム |
| Kurmancî | kmr-000 | radyûm |
| 한국어 | kor-000 | 라듐 |
| latine | lat-000 | radium |
| lietuvių | lit-000 | radis |
| latviešu | lvs-000 | rādijs |
| reo Māori | mri-000 | konuruke |
| Nederlands | nld-000 | radium |
| nynorsk | nno-000 | radium |
| bokmål | nob-000 | radium |
| polski | pol-000 | rad |
| português | por-000 | rádio |
| română | ron-000 | radiu |
| русский | rus-000 | радий |
| slovenčina | slk-000 | rádium |
| slovenščina | slv-000 | radij |
| español | spa-000 | radio |
| српски | srp-000 | pадијум |
| svenska | swe-000 | radium |
| ภาษาไทย | tha-000 | เรเดียม |
| Türkçe | tur-000 | radyum |
| українська | ukr-000 | pадій |