Xenonium
| Identifiers | |
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| 3D model (JSmol) | |
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| Properties | |
| HXe+ | |
| Molar mass | 132.300 g·mol−1 | 
| Related compounds | |
| Related compounds | Helium hydride; Neonium, Argonium, Kryptonium | 
| Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references | |
The xenonium ion, XeH+, is an onium compound, consisting of protonated xenon. Although the existence of the xenonium salts has not been proven, the isolated XeH+ ion is known. Salts of the fluoroxenonium ion, XeF+, are known to exist, for instance fluoroxenonium pentafluoroplatinate (XeFPtF5), more commonly known as xenon hexafluoroplatinate.