noble gas
Plural
noble gases
1
any of the elements in Group 18 of the periodic table, including helium, neon, argon, krypton, xenon, and radon, characterized by their inert nature and stable electron configurations
- Helium, a noble gas, is known for its low density and is often used in balloons to make them float.
- Neon signs emit light when an electrical current passes through neon gas, showcasing the unique properties of noble gases.
- Argon, a noble gas commonly used in welding, provides an inert atmosphere to prevent the oxidation of metals during the process.
- Noble gases have complete electron shells, making them chemically inert and less likely to form compounds with other elements.
- The noble gas configuration is characterized by a full outer electron shell, contributing to the stability and lack of reactivity.