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Argon Wiki, The name "argon" is from the Greek word ἀργός meaning "lazy" or "inactive" because it does not react with other chemicals. UCAR Center for Science Education Argon is a chemical element. For instance, argon is used in conjunction with other gases in the production of semiconductors and in growing crystals in laboratory settings. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images. Argon has 18 protons in its nucleus and is therefore denoted by atomic number 18 on the periodic table. 93% of Earth’s atmosphere, making it the third most abundant atmospheric gas after nitrogen and oxygen. It is in group 18 of the periodic table and is a noble gas. It is used in combination with other gases like helium, oxygen, and nitrogen to create specialized atmospheres in various industries. Element Argon (Ar), Group 18, Atomic Number 18, p-block, Mass 39. It is used in gas-filled electric light bulbs, radio tubes, and Geiger counters. Technical Argon in Cylinders Gasified argon is used as a protective medium for welding, cutting, and melting active and liquid metals and their alloys, aluminum, aluminum and magnesium alloys, stainless chromium-nickel heat-resistant alloys, and various grades of alloy steel. It is part of the noble gas group. For the full article, see argon. Argon is the third-most abundant gas in the Earth 's atmosphere. Argon is a chemical element; it has symbol Ar and atomic number 18. Argon makes up a little less than 1% of Earth’s atmosphere by volume. About Argon is a noble gas that makes up about 0. [10] Argon is the third most abundant gas in Earth's atmosphere, at 0. Argon is a chemical element; it has symbol Ar and atomic number 18. argon, Chemical element, chemical symbol Ar, atomic number 18. . Its symbol is argon is Ar and its atomic number is 18. It is an odorless and tasteless gas. Its name comes from Argon is the most abundant noble gas; the others—helium, neon, krypton, xenon, and radon—are present in the air in even smaller amounts. Jan 30, 2026 · Argon is an essential component in many industrial applications. 934% (9340 ppmv). It is terrestrially the most abundant and industrially the most frequently used of the noble gases. It is more than twice as abundant as water vapor (which averages about 4000 ppmv, but varies greatly), 23 times as abundant as carbon dioxide (400 ppmv), and more than 500 times as May 19, 2026 · Argon is a chemical element, an inert gas of Group 18 (noble gases) of the periodic table. argon Properties of argon. It constitutes about 1% of air and is obtained by distillation of liquid air. Argon (pronunciation: AR-gon) is a colorless, odorless, inert element belonging to the group of inert gases in the periodic table and is represented by the chemical symbol Ar [1, 2, 3]. Colourless, odourless, and tasteless, it is the most abundant of the noble gas es on Earth and the one most used in industry. Like its noble gas siblings, argon is colorless, odorless, and extremely unreactive due to its complete outer electron shell – a property that makes it invaluable for creating inert environments in industrial processes. 95.