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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.
In this video we'll look at the atomic structure and Bohr model for the Argon atom (Ar). We’ll use a Bohr diagram to visually represent where the electrons are around the nucleus of the Ar...
17 sie 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.
Molecular weight: 39.948. IUPAC Standard InChI:InChI=1S/Ar Copy. IUPAC Standard InChIKey:XKRFYHLGVUSROY-UHFFFAOYSA-N Copy. CAS Registry Number: 7440-37-1. Chemical structure: This structure is also available as a 2d Mol file. Other names: Ar; UN 1006; UN 1951; argon atom. Permanent link for this species.
Symbol: Ar. Atomic Number: 18. Atomic Mass: 39.948 amu. Melting Point: -189.3 °C (83.85 K, -308.74 °F) Boiling Point: -186.0 °C (87.15 K, -302.8 °F) Number of Protons/Electrons: 18. Number of Neutrons: 22. Classification: Noble Gas. Crystal Structure: Cubic.
