1 results for 'chemical elements'
Chemical elements (en)
عناصر كيميائية (ar), Élément chimique (fr), Химические элементы (ru), Elemento químico (es)
Carbon, Isotopes, Phosphorus, Sulphur
Biochemicals, Chemicals, Hydrogen, Materials, Metals, Nitrogen, Oxygen
Science
> Chemical sciences
عناصر كيميائية (ar), Élément chimique (fr), Химические элементы (ru), Elemento químico (es)
http://vocabularies.unesco.org/thesaurus/concept139