Neon compounds
any chemical compound having at least one neon atom
Neon compounds are chemical compounds containing the element neon (Ne) with other molecules or elements from the periodic table. Compounds of the noble gas neon were believed not to exist, but there are now known to be molecular ions containing neon, as well as temporary excited neon-containing molecules called excimers. Several neutral neon molecules have also been predicted to be stable, but are yet to be discovered in nature. Neon has been shown to crystallize with other substances and form clathrates or Van der Waals solids.
Neon has a high first ionization potential of 21.564 eV (2080.6 kJ mol-1), which is only exceeded by that of helium (24.587 eV, 2372.3 kJ mol-1), requiring too much energy to make stable ionic compounds. Neon's polarisability of 0.395 Å3 is the second lowest of any element (only helium's is more extreme). Low polarisability means there will be little tendency to link to other atoms. Neon has a Lewis basicity or proton affinity of 2.06 eV (199 kJ mol-1). Neon is theoretically less reactive than helium, making it the least reactive of all the elements.
Van der Waals molecules
Van der Waals molecules are those where neon is held onto other components by London dispersion forces.
This brief starts where responsible research should: with the source description of “Neon compounds” as any chemical compound having at least one neon atom. Everything that follows is an evidence route, not borrowed authority.
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Stable identifiers, scientific names and standards terminology offer the best bridge between this overview and specialist evidence. The source revision retrieved here is dated Sep 12, 2026. The linked authority identifier is Q25313568. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2080.
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This entry incorporates text from “Neon compounds” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.