Kr
Krypton · noble gas
Krypton is a stable, inert noble gas that acts as a wide-gap insulator and is commonly used in specialized lighting and scientific instrumentation.
About Krypton
Krypton is a noble gas that exists as a thermodynamically stable element on the convex hull. As a wide-band-gap insulator, it remains chemically inert under standard conditions, characterized by a closed-shell electronic configuration that resists typical bonding interactions.
Its significance lies in its unique physical properties as a rare atmospheric gas. It is widely utilized in specialized lighting and high-energy physics applications where its stable, non-reactive nature provides essential performance benefits in controlled environments.
Key Properties
Cross-validated computational properties for Krypton, 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 Krypton is used.
Frequently Asked Questions
Common questions about Krypton, answered from cross-validated data.
What is Kr?
Krypton is a stable, inert noble gas that acts as a wide-gap insulator and is commonly used in specialized lighting and scientific instrumentation.
What is Kr used for?
What is the band gap of Kr?
Is Kr a metal, semiconductor, or insulator?
Is Kr thermodynamically stable?
How many polymorphs of Kr are known?
What elements does Kr contain?
Where does the data for Kr come from?
How It Compares
As a noble gas, Krypton occupies a distinct position as a highly stable, inert element. Unlike more reactive elements that readily form compounds, it serves as a fundamental reference point for chemical stability and insulating behavior within the periodic table.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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