Knowra Argon compounds Argon compounds Argon compounds are substances in which argon is chemically bonded to other elements. Known examples are rare and generally require specialized conditions.
Argon fluorohydride : A hydrogen–argon–fluorine molecule produced in a solid argon matrix at very low temperature. It is the first neutral compound reported with a chemical bond between argon and another element.
Neil Bartlett : A British chemist who prepared the first widely recognized xenon compound in 1962. His xenon result prompted renewed searches for compounds of lighter noble gases, including argon.
Argon : A colorless, odorless noble gas with atomic number 18 and a filled outer electron shell. Its closed electron shell accounts for the low reactivity that makes its compounds exceptional.
Argon hydride : A molecule or molecular ion containing an argon–hydrogen bond, especially ArH⁺ in astrophysical contexts. ArH⁺ has been detected in space, making it an observationally important argon-bearing species.
Xenon : A heavy noble gas with atomic number 54 that forms numerous compounds, especially with fluorine and oxygen. Xenon’s accessible chemistry contrasts with the scarcity of argon compounds.
Argon cation : A positively charged argon species formed when an argon atom loses one or more electrons. Removing an electron makes argon more able to form bonds than neutral argon.
Xenon hexafluoroplatinate : A compound formed from xenon and platinum hexafluoride, reported by Neil Bartlett in 1962. Its preparation overturned the expectation that noble gases were chemically inert.
Noble gas : An element in Group 18, characterized by a filled outer electron shell and low chemical reactivity. Argon’s position in this group frames the historical expectation that it would not form compounds.
Crab Nebula : A supernova remnant in the constellation Taurus, powered at its center by a pulsar. Astronomers detected argon hydride ions in its hydrogen-rich regions.
Krypton compounds : Chemical substances containing krypton bonded to other elements, including krypton difluoride. Krypton forms recognizable compounds more readily than argon, but less extensively than xenon.
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