[Tim_Lou]

noble gases are extremely stable elements.... some noble gas compounds are discover such as XeF4...

however, there do not seem to be neon or helium compounds...

but i found something very interesting from the website, about neon and helium compounds:
http://www.wordiq.com/definition/Neon from this website
Compounds
"Even though neon is for most practical purposes an inert element, it can form an exotic compound with fluorine in the laboratory. It is not known for certain if this or any neon compound exists naturally but some evidence suggests that this may be true. The ions, Ne+, (NeAr)+, (NeH)+, and (HeNe+) are have also been observed from optical and mass spectrometric research. In addition, neon forms an unstable hydrate."

and those of helium: http://www.wordiq.com/definition/Helium
"Reactions
Helium is chemically unreactive under all normal conditions. With electric glow discharge or electron bombardment, however, helium can form compounds with tungsten, iodine, fluorine, sulfur and phosphorus."

wow, it is impossible to form covalent bond without removing electrons, due to the fact that there is no d sub level in period one and two....so a huge supply of energy must needed to ionize the noble gas....the compounds would be overall very unstable..


"any neon compound exists naturally but some evidence suggests that this may be true" that would be cool..... sounds impossible though...

[FREYA021]

hehehe that for compaunds of noble elements said one guy much earlier in history... Pauling back in 1933. KrF6, XeF6, but not stable enought to have them. Then in 1962. world got 1st compound of this elements, a complex, Xe[PtF6] that year they loose name INERTE GASSES, and gain name REAR. thats why chemist wanted to put ZERO GROUP out of PTE and name it VIIIa, and earlier VIII group as VIIIb, today's chemist usualy use this naming in PTE.
also iones XeO6 (2-) is similar to ClO3 (-), as is XeO6(4-) similar to ClO4 (-)
1987. American Chemical Soc. claim that acording to kvantchemical works of Koch ( Berlin) only stable compound of He is HeBeO- even stable on lower temperatures...