Ar
Argon · noble gas
Argon is a chemically inert, wide-gap insulating noble gas widely used to provide protective atmospheres in industrial and scientific applications.
About Argon
Argon is a noble gas characterized by its exceptional chemical inertness and wide-gap insulating electronic structure. As a thermodynamically stable element, it exists as a monatomic gas under standard conditions and remains chemically unreactive due to its complete valence electron shell.
This stability makes it a vital component in modern technology, where it serves as a protective medium to prevent unwanted chemical reactions. Its prevalence in industrial applications stems from its ability to provide an inert environment during high-temperature processing and sensitive manufacturing tasks.
Key Properties
Cross-validated computational properties for Argon, aggregated across 4 databases.
Band GapEnergy needed to move an electron from the valence band to the conduction band. Lower or zero values tend to behave more metallic; larger gaps are more insulating or semiconducting.
Energy Above HullThermodynamic distance from the most stable set of competing phases. 0 eV/atom is on the convex hull; small positive values may still be experimentally accessible.
StabilityA plain-language summary of the best reported energy-above-hull result. It reflects whether the lowest-energy structure is on, near, or far from the stability hull.
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
Applications
Where Argon is used.
Frequently Asked Questions
Common questions about Argon, answered from cross-validated data.
What is Ar?
Argon is a chemically inert, wide-gap insulating noble gas widely used to provide protective atmospheres in industrial and scientific applications.
What is Ar used for?
What is the band gap of Ar?
Is Ar a metal, semiconductor, or insulator?
Is Ar thermodynamically stable?
How many polymorphs of Ar are known?
What elements does Ar contain?
Where does the data for Ar come from?
How It Compares
As a noble gas, Argon occupies a unique position in the periodic table, serving as the standard for inertness and stability within its elemental class.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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