🌐EnglishEnglishEspañolFrançaisItalianoNederlandsPolskiPortuguêsSvenskaTiếng ViệtРусскийالعربيةفارسی한국어中文日本語EntityQ7030582· pop 42Category:Czech chemistsWikimedia categoryArticleSee also:Category:Science Category:ChemistryAvailable in 39 languagesEspañolFrançais中文日本語РусскийPortuguêsItalianoالعربيةArmenian