noun🔗ShareArgonThe chemical element (symbol Ar) with an atomic number of 18. The third most abundant gas in the Earth's atmosphere, it is a colourless, odourless, inert noble gas."Many light bulbs are filled with argon to prevent the filament from burning out quickly. "De nombreuses ampoules sont remplies d'argon pour empêcher le filament de brûler rapidement.elementchemistrysubstanceChat with AIVocabulary GamePractice Reading
noun🔗ShareUn atome unique de cet élémentA single atom of this element."The lab technician carefully isolated a single argon atom for the experiment. "Le technicien de laboratoire a soigneusement isolé un seul atome d'argon pour l'expérience.elementchemistrysubstanceChat with AIVocabulary GamePractice Reading
