What is the elemental symbol of argon?

Argon, nonmetallic element, element symbol Ar. Argon is a monoatomic molecule, and the simple substance is a colorless, odorless and tasteless gas. Argon is the most abundant rare gas in the air. Because of its abundant content in nature, argon is the earliest rare gas found. Its chemical properties are very inactive, but its compound-argon hydrogen fluoride has been prepared.

Argon can't burn or help combustion. The earliest use of argon was to inflate electric light bulbs. Welding and cutting metals also use a lot of argon. Used as shielding gas for arc welding stainless steel, magnesium, aluminum and other alloys, that is, argon arc welding.

Main applications

The main purpose of argon is its inertness, which can protect some things that easily react with surrounding substances. Although other inert gases also have these characteristics, argon is the most abundant and easily available in the air, so it is relatively cheap and has economic benefits.

In addition, argon is cheap because it is a by-product of liquid oxygen and liquid nitrogen, and because both of them are important industrial raw materials and have a large output, there are many liquid argon by-products every year.

Reference to the above content: Baidu Encyclopedia-Argon