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[Gr. hēlios, the sun + -ium (1)] SYMB: He A chemical element, one of the noble gases, atomic weight (mass) 4.0026, atomic number 2. A liter of the gas at sea level pressure and 0°C weighs 0.1785 g. The second lightest element known, it is given off by radium and other radioactive elements in the form of charged helium ions known as alpha rays. Because of its low density, it is mixed with air or oxygen and used in the treatment of various respiratory disorders. Because of its low solubility, it is mixed with air supplied to workers laboring under high atmospheric pressure, as in caissons. When so used, it reduces the time required to adjust to increasing or decreasing air pressure and reduces the danger of bends. SEE: noble gas CAS # 7440-59-7
Venes, Donald, editor. "Helium." Taber's Medical Dictionary, 23rd ed., F.A. Davis Company, 2017. Taber's Online, www.tabers.com/tabersonline/view/Tabers-Dictionary/745196/all/helium.
Helium. In: Venes D, ed. Taber's Medical Dictionary. 23rd ed. F.A. Davis Company; 2017. https://www.tabers.com/tabersonline/view/Tabers-Dictionary/745196/all/helium. Accessed September 19, 2019.
Helium. (2017). In Venes, D. (Ed.), Taber's Medical Dictionary. Available from https://www.tabers.com/tabersonline/view/Tabers-Dictionary/745196/all/helium
Helium [Internet]. In: Venes D, editors. Taber's Medical Dictionary. F.A. Davis Company; 2017. [cited 2019 September 19]. Available from: https://www.tabers.com/tabersonline/view/Tabers-Dictionary/745196/all/helium.
* Article titles in AMA citation format should be in sentence-case
TY - ELEC
T1 - helium
ID - 745196
ED - Venes,Donald,
BT - Taber's Medical Dictionary
UR - https://www.tabers.com/tabersonline/view/Tabers-Dictionary/745196/all/helium
PB - F.A. Davis Company
ET - 23
DB - Taber's Online
DP - Unbound Medicine