Noble gases are chemical elements located in Group 18 of the periodic table. They include helium, neon, argon, krypton, xenon, radon, and oganesson, whose experimentally established properties remain limited because of the extremely short lifetimes of its isotopes. Most noble gases are characterized by very low chemical reactivity due to their stable outer electron configurations. Noble gases occur naturally in different concentrations. Argon is the most abundant noble gas in Earth's atmosphere, while helium is known for its low density and extremely low boiling point, making it useful in various scientific and industrial applications. Under ordinary conditions, noble gases exist as monatomic gases. Most are colorless and odorless. Although they are generally chemically unreactive, some noble gases, particularly xenon and krypton, can form chemical compounds under suitable conditions. Noble gases have numerous practical applications. Helium is used in cooling systems for magnetic resonance imaging equipment, while argon provides an inert atmosphere in welding and certain laboratory procedures. Neon is used in lighting systems, and xenon has applications in specialized lamps and medical technologies. In analytical chemistry and forensic laboratories, helium and argon are used as carrier or supporting gases in various analytical instruments, including gas chromatography and inductively coupled plasma techniques. Selecting suitable gases helps improve instrument performance and analytical reliability. In conclusion, noble gases are important elements in modern chemistry. Despite their relatively low chemical reactivity, their unique physical properties make them valuable in scientific laboratories and advanced industrial technologies.