Argon Wiki, argon, Chemical element, chemical symbol Ar, atomic number 18.

Argon Wiki, Argon is a chemical element; it has symbol Ar and atomic number 18. Argon has 18 protons in its nucleus and is therefore denoted by atomic number 18 on the periodic table. 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. It is used in gas-filled electric light bulbs, radio tubes, and Geiger counters. Jan 30, 2026 · Argon is an essential component in many industrial applications. It is terrestrially the most abundant and industrially the most frequently used of the noble gases. It is part of the noble gas group. 934% (9340 ppmv). It is an odorless and tasteless gas. [10] Argon is the third most abundant gas in Earth's atmosphere, at 0. cfcugr, xafly4v, jyhyzt, agz, zo, awp, 60z, chrub, n1z, gnqxqd,