1 results for 'chemical elements'
Chemical elements
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