Argon - Wikipedia
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. [10] Argon is the third most abundant gas in Earth's …
Argon - Element information, properties and uses | Periodic Table
Element Argon (Ar), Group 18, Atomic Number 18, p-block, Mass 39.95. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.
Argon | Ar (Element) - PubChem
Argon is a chemical element with symbol Ar and atomic number 18. Classified as a noble gas, Argon is a gas at room temperature. [Ne]3s 2 3p 6. B. Cordero, V. Gómez, A.E. Platero-Prats, …
Argon - Atomic Mass - Atomic Weight - Ar - Periodic Table of ...
2020年11月21日 · Atomic mass of Argon is 39.948 u. The atomic mass is the mass of an atom. The atomic mass or relative isotopic mass refers to the mass of a single particle, and therefore …
Argon (Ar) - Periodic Table
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 …
Argon - Periodic Table and Atomic Properties
Atomic mass of Argon is 39.948 u. The atomic mass is the mass of an atom. The atomic mass or relative isotopic mass refers to the mass of a single particle, and therefore is tied to a certain …
Argon (Ar) - Chemical Elements.com
Name: Argon 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 …