Inert gas
Inert Gas
Inert gas (pronunciation: /ɪnɜːrt gæs/), also known as noble gas, is a group of chemical elements with similar properties under standard conditions. The term "inert" is used because these gases do not readily engage in chemical reactions due to their full valence electron shells.
Etymology
The term "inert gas" is derived from the Latin word "inertis", meaning idle or sluggish. This is in reference to the low reactivity of these gases. The term "noble gas" is a translation of the German word "Edelgas", first used in 1898 by Hugo Erdmann to indicate their extremely low level of reactivity.
Types of Inert Gases
The six naturally occurring inert gases are:
Properties
Inert gases are colorless, odorless, tasteless, and nonflammable. They are located in Group 18 (VIIIa) of the periodic table. The atoms of inert gases are stable and do not readily form chemical compounds with other elements because their outermost electron shell is full.
Uses
Inert gases have various applications in industries such as lighting, welding, and space exploration. For example, Argon is used in light bulbs, Helium in balloons, and Xenon in flash lamps and ion propulsion systems for spacecraft.
Related Terms
External links
- Medical encyclopedia article on Inert gas
- Wikipedia's article - Inert gas
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