History, Properties, Occurrence, Extraction, Compound, and Application The Argon

History

William Ramsay

Lord Rayleigh

Properties

Physical Properties:

Chemical Properties:

Argon is stable compound
Argon is more soluble in water than nitrogen
Argon does not combine with titanium, boron, or uranium when heated in contact with these elements, or with fluorine at the ordinary temperature or under the influence of the electric spark.
Argon has approximately the same solubility as oxygen

Occurrence

Argon is contituting about 0,941% (with no carbon dioxide)

Extraction

Produced from liquid air by fractional distillation.
Produced by heating nitrogen gas from the atmosphere with hot magnesium or calcium.

Compound

Compounds of argon have been detected in inert gas matrix isolation, cold gases, and plasmas, and molecular ions containing argon have been made and also detected in space. One solid interstitial compound of argon, Ar1C60 is stable at room temperature

Neutral argon atoms bind very weakly to other neutral atoms or molecules to form van der Waals molecules

Van der Waals

↓

AgAr, Ag2Ar, NaAr, KAr, MgAr, CaAr, SrAr, ZnAr, CdAr, HgAr, SiAr, InAr, CAr, GeAr, nAr, and BAr

Application

Light bulb

Plasma Globe

Welding

Glowes tube

Argon laser

Ice coring

Incandescent light bulb

Incandescent light bulb is consists of a metal wire inside a clear glass bulb. An electric current passes through the wire, causing it to get very hot and give off light.

Because argon is inert, it will not react with the hot wire, leaving the metal hot for very long periods of time.

Interesting Fact

Argon is created when the potassium in the earth's crust decays.
It's the most abundant of rare gases.
It emits light when electronically excited.
About 1,6% of Mars' atmosphere contains argon
Because noble gas atoms have a complete valence electron shell, they are not very reactive. Argon does not readily form compounds

References:

BOEMELIND