Argon is often used when an inert atmosphere is needed. It is used in this way to protect the weld area and in incandescent light bulbs to stop oxygen from corroding the filament. Argon is used in fluorescent tubes and low-energy light bulbs. A low-energy light bulb often contains argon gas and Mercury. When it is switched on an electric discharge passes through the gas, generating UV light. The coating on the inside surface of the bulb is activated by the UV light and it glows brightly. Double-glazed windows use argon to fill the space between the panes. The tyres of luxury cars can contain argon to protect the rubber and reduce road noise.
Ar
It is 87.3 K.
There are three natural isotopes.
Argon is a non metal element. Atomic mass of it is 39.94.
Helium, Xenon, Neon, Krypton, and Radon.
For most people there is absolutely no reason to buy any argon in their lifetimes.
Argon is very unreactive as it is a noble gas. Its common oxidation number is zero.
argons, groans, orangs, organs, sarong
Ar 40 is the most common isotope, accounting for 99.6% of the total (by weight).
Argon's atomic number is 18, which means it has 18 protons in its nucleus.
Argon atoms have 18 protons which is similar to the number of electrons.
Argon is a gaseous element, and it is allowed in the TWL and SOWPODS lexicons. Also, it is definitely legal to pluralize words in Scrabble.