bn:00006849n
Noun Concept
Categories: All articles containing potentially dated statements, Helium, Diving equipment, All articles needing additional references, Noble gases
EN
helium  He  atomic number 2  ATC code V03AN03  ATCvet code QV03AN03
EN
A very light colorless element that is one of the six inert gasses; the most difficult gas to liquefy; occurs in economically extractable amounts in certain natural gases (as those found in Texas and Kansas) WordNet 3.0
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EN
A very light colorless element that is one of the six inert gasses; the most difficult gas to liquefy; occurs in economically extractable amounts in certain natural gases (as those found in Texas and Kansas) WordNet 3.0 & WordNet 2020
Helium is a chemical element with the symbol He and atomic number 2. Wikipedia
A colorless, odorless, tasteless, nearly inert noble gas with the symbol He and atomic number 2. It is after hydrogen the second most abundant element in the universe. It is a component of air and is being used for balloon and airship fillings, as well as for deep-sea breathing systems in combination with oxygen. OmegaWiki
The 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. Wiktionary
Chemical element. Wiktionary (translation)