Definition, Meaning & Synonyms
rare-gas
noun
/ˈrɛər ɡæs/
Definition
A class of chemical elements that have similar properties and are characterized by their lack of reactivity under standard conditions.
Examples
- Helium is a rare-gas used in balloons.
- Neon signs glow bright due to the ionization of rare-gas in them.
- Argon is commonly used in welding processes due to its inert nature.
Meaning
Rare gases, also known as noble gases, are elements that are found in Group 18 of the periodic table. They are called ‘rare’ because they exist in very small amounts in the atmosphere and do not readily combine with other elements.
Synonyms
- noble gas
- inert gas
