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Argon is a chemical element; it has symbol Ar and atomic number 18. It is in group 18 of the periodic table and is a noble gas. [9] . Argon is the third most abundant gas in Earth's atmosphere, at 0.934% (9340 ppmv ).
Element Argon (Ar), Group 18, Atomic Number 18, p-block, Mass 39.95. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.
Jul 4, 2024 · Argon, chemical element, inert gas of Group 18 (noble gases) of the periodic table, terrestrially the most abundant and industrially the most frequently used of the noble gases. It is used in gas-filled electric light bulbs, radio tubes, and Geiger counters.
Argon is the 18th element in the periodic table and has a symbol of Ar and atomic number of 18. It has an atomic weight of 39.948 and a mass number of 40. Argon has eighteen protons and twenty-two neutrons in its nucleus, and eighteen electrons in three shells.
Nov 21, 2020 · Argon is a chemical element with atomic number 18 which means there are 18 protons and 18 electrons in the atomic structure. The chemical symbol for Argon is Ar.
Oct 17, 2018 · Argon is a noble gas with element symbol Ar and atomic number 18. It is best known for its use as an inert gas and for making plasma globes. Fast Facts: Argon. Element Name: Argon. Element Symbol: Ar. Atomic Number: 18. Atomic Weight: 39.948. Appearance: Colorless inert gas. Group: Group 18 (Noble Gas) Period: Period 3.
Argon is a chemical element of the periodic table with chemical symbol Ar and atomic number 18 with an atomic weight of 39.792 u and is classed as noble gas and is part of group 18 (noble gases).
Get the facts about element Argon (Ar) [18] from the periodic table. Find physical data, electron configuration, chemical properties, aggregation states, isotope data (including decay trees) as well as some historic information.
Dec 30, 2019 · Argon (Ar) exists as a colourless, odourless gas and is chemically inert. It has the atomic number 18 in the periodic table and belongs in Group 18, the Noble Gases. It is a non metal with the symbol Ar.
Ar I Ground State 1 s2 2 s2 2 p6 3 s2 3 p6 1 S 0 Ionization energy 127109.842 cm -1 (15.759610 eV) Ref. VHU99 Ar II Ground State 1 s2 2 s2 2 p6 3 s2 3 p5 2 P° 3/2 Ionization energy 222848.3 cm -1 (27.62966 eV) Ref. M60b
