noun🔗ShareHelioThe second lightest chemical element (symbol He) with an atomic number of 2 and atomic weight of 4.002602, a colorless, odorless and inert noble gas."The birthday balloons were filled with helium, which made them float to the ceiling. "Los globos de cumpleaños se llenaron de helio, lo que hizo que flotaran hasta el techo.elementchemistrysubstancematerialphysicsscienceChat with AIVocabulary GamePractice Reading
noun🔗ShareHelioA form or sample of the element."The science experiment required a sample of helium. "El experimento científico requería una muestra de helio.elementsubstancechemistryChat with AIVocabulary GamePractice Reading
