noun
- a colorless, odorless, inert gas that makes up about 1% of the atmosphere
Usage: chemistry
Examples
- Argon is used in light bulbs to prevent the filament from oxidizing.
- The periodic table shows argon as element number 18.
- Scientists discovered argon in the late 19th century.
- Argon welding produces high-quality joints in metals.
- The atmosphere contains nitrogen, oxygen, and small amounts of argon.
- Argon is classified as a noble gas because it rarely reacts with other elements.