noun🔗ShareHeliumThe 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. "Die Geburtstagsballons waren mit Helium gefüllt, wodurch sie zur Decke schwebten.elementchemistrysubstancematerialphysicsscienceChat with AIVocabulary GamePractice Reading
noun🔗ShareHeliumA form or sample of the element."The science experiment required a sample of helium. "Das wissenschaftliche Experiment erforderte eine Probe von Helium.elementsubstancechemistryChat with AIVocabulary GamePractice Reading
