Argon facts

• The element symbol for Argon is AR. Its name is From the Greek word for inactive, Argos.
• The atomic number for Argon is 18.
• Argon has 18 protons, 22 neutrons, and 18 electrons.
• The atomic mass for Argon is 38.948

More facts about Argon

• Argon is classified as a nonmetal.
• Argon was discovered by Sir William Ramsay, a Scottish chemist, and Lord Rayleigh, an English chemist, in 1894.
• Argon can be used to form inert atmosphere for arc welding, growing semiconductor crystals and processes that require shielding from other atmospheric gas.
• It was once thought to be completely inert, argon is known to form at least one compound.
• Argon fluorohydride begins to decompose once it warms above -246°C (-411°F).
• The density of Argon is 0.0017.
• Argon does not react with any substances. Its the 3rd most prevarent gas in the earths atmosphere, found at 9,300 parts per million. Its makes up 1.28%of the earths atmosphere and was the first nodel gas to be discovered.