Noble gas
noble gas, any of the seven chemical elements that make up Group 18 (VIIIA) of the periodic
table. The elements
are helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), radon (Rn),
and oganesson (Og).
Chemical and physical properties
Noble gases are odorless, colorless, nonflammable, and monotonic gases that have low chemical
reactivity. The full valence electron shells of these atoms make noble gases extremely stable and
unlikely to form chemical bonds because they have little tendency to gain or lose electrons.
Uses of noble gases
Helium is used in filling balloons.
Oxygen -Helium mixture is used in the treatment of asthma.
Neon is used for filling sodium vapor lamps.
Argon is used as a carrier gas in gas chromatography.
Krypton is used in high efficiency miner's cap lamps.
Radon is used in radioactive research.
noble gas, any of the seven chemical elements that make up Group 18 (VIIIA) of the periodic
table. The elements
are helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), radon (Rn),
and oganesson (Og).
Chemical and physical properties
Noble gases are odorless, colorless, nonflammable, and monotonic gases that have low chemical
reactivity. The full valence electron shells of these atoms make noble gases extremely stable and
unlikely to form chemical bonds because they have little tendency to gain or lose electrons.
Uses of noble gases
Helium is used in filling balloons.
Oxygen -Helium mixture is used in the treatment of asthma.
Neon is used for filling sodium vapor lamps.
Argon is used as a carrier gas in gas chromatography.
Krypton is used in high efficiency miner's cap lamps.
Radon is used in radioactive research.
