Noble gases are found in which group?

Noble gases are found in Group 18 of the periodic table. This group is characterized by elements that have a complete valence shell, meaning they have eight electrons in their outermost energy level, which makes them very stable and unreactive. The noble gases include helium, neon, argon, krypton, xenon, and radon. Because of their electron configuration, they do not typically form chemical bonds with other elements, which is a distinguishing feature of noble gases.

The other groups mentioned represent different categories of elements. Group 1 consists of alkali metals, which are highly reactive and have one electron in their outer shell. Group 2 contains alkaline earth metals, which are also reactive but less so than alkali metals. Group 17 is comprised of halogens, which are very reactive nonmetals trying to gain an electron to achieve a stable configuration. These groups highlight variation in electron configuration and reactivity, making Group 18 unique due to its lack of reactivity.