Canadian Medical Guide > Chemicals and Drugs > Inorganic Chemicals > Elements > Noble Gases Terms and Definitions

Noble Gases

Medical Definition:	Elements that constitute group 18 (formerly the zero group) of the periodic table. They are gases that generally do not react chemically.
Guide Notes:	GEN or unspecified; prefer specifics
Previously Indexed:	Gases (1966-1975)

Noble Gases Categories.

	Argon - Argon. A noble gas with the atomic symbol Ar, atomic number 18, and atomic weight 39.948. It is used in fluorescent tubes and wherever an inert atmosphere is desired and nitrogen cannot be used.
	Helium - Helium. 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. (Dorland, 27th ed)
	Krypton - A noble gas that is found in the atmosphere. It has the atomic symbol Kr, atomic number 36, atomic weight 83.80, and has been used in electric bulbs.
	Neon - Neon. A noble gas with the atomic symbol Ne, atomic number 10, and atomic weight 20.18. It is found in the earth's crust and atmosphere as an inert, odorless gas and is used in vacuum tubes and incandescent lamps.
	Xenon - A noble gas with the atomic symbol Xe, atomic number 54, and atomic weight 131.30. It is found in the earth's atmosphere and has been used as an anesthetic.

Noble Gases Medical Definitions and Terms

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