Concept information
Preferred term
Helium
Type
-
Topical Descriptor
Broader concept
Entry terms
- Helium 4
- Helium-4
Scope note
- A noble gas with the atomic symbol He, atomic number 2, and atomic weight 4.003. It is a colorless, odorless, tasteless gas that is not combustible and does not support combustion. It was first detected in the sun and is now obtained from natural gas. Medically it is used as a diluent for other gases, being especially useful with oxygen in the treatment of certain cases of respiratory obstruction, and as a vehicle for general anesthetics.
URI
http://www.yso.fi/onto/mesh/D006371
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