30 окт. 2024 г. · The outermost (valence) shell of argon has eight electrons, making it exceedingly stable and, thus, chemically inert. Argon atoms do not combine ...

Chemical element, Argon, information from authoritative sources. Look up properties, history, uses, and more.

Atomic Number, 18 ; Atomic Mass, 39.948 atomic mass units ; Number of Protons, 18 ; Number of Neutrons, 22 ; Number of Electrons, 18.

Atomic number, 18, Relative atomic mass, 39.95 ; State at 20°C, Gas, Key isotopes · Ar ; Electron configuration, [Ne] 3s23p · CAS number, 7440-37-1.

15 мая 2023 г. · Argon is a chemical element with atomic number 18 and group 18 and symbol Ar in the periodic table. Argon is odourless, colourless that is totally inert to ...

Argon is a chemical element. Its symbol is argon is Ar and its atomic number is 18. It is part of the noble gas group. It is an odorless and tasteless gas.