Krypton Xenon

Heliurn, neon, argon, krypton, xenon, radon)... 

Argon is two and one half times as soluble in water as nitrogen, having about the same solubility as oxygen. Argon is colorless and odorless, both as a gas and liquid. Argon is considered to be a very inert gas and is not known to form true chemical compounds, as do krypton, xenon, and radon. 

Noble gases (Section 1 1) The elements in group VIIIA of the penodic table (helium neon argon krypton xenon radon)... 

This krypton—xenon mixture is usually sent to a different location for separation by distillation and further purification by catalytic and/or adsorptive processes. 

Simple Fluids. Spherical compounds having Httle molecular interaction, eg, argon, krypton, xenon, and methane, are known as simple fluids and obey the theory of corresponding states. 

The Noble Gases Helium, Neon, Argon, Krypton, Xenon and Radon... 

The behaviour of irradiated uranium has been studied mainly with respect to the release of fission products during oxidation at high temperatures The fission products most readily released to the gas phase are krypton, xenon, iodine, tellurium and ruthenium. The release can approach 80-100%. For ruthenium it is dependent upon the environment and only significant in the presence of oxygen to form volatile oxides of ruthenium. 

The dozen or so elements that are normally found as gases include nitrogen, oxygen, fluorine, helium, neon, argon, krypton, xenon, and chlorine. Where are these placed in the periodic table (see inside front cover) ... 

For the gas hydrates it is not possible to make an entirely unambiguous comparison of the observed heat of hydrate formation from ice (or water) and the gaseous solute with the calculated energy of binding of the solute in the ft lattice, because AH = Hfi—Ha is not known. If one assumes AH = 0, it is found that the hydrates of krypton, xenon, methane, and ethane have heats of formation which agree within the experimental error with the energies calculated from Eq. 39 for details the reader is referred to ref. 30. 

The elements helium, neon, argon, krypton, xenon, and radon—known as the noble gases—almost always have monatomic molecules. Their atoms are not combined with atoms of other elements or with other atoms like themselves. Prior to 1962, no compounds of these elements were known. (Since 1962, some compounds of krypton, xenon, and radon have been prepared.) Why are these elements so stable, while the elements with atomic numbers 1 less or 1 more are so reactive The answer lies in the electronic structures of their atoms. The electrons in atoms are arranged in shells, as described in Sec. 3.6. (A more detailed account of electronic structure will be presented in Chap. 17.)... 

Since the discovery of the first noble gas compound, Xe PtF (Bartlett, 1962), a number of compounds of krypton, xenon, and radon have been prepared. Xenon has been shown to have a very rich chemistry, encompassing simple fluorides, XeF2> XeF, and XeF oxides, XeO and XeO oxyf luorides, XeOF2> XeOF, and Xe02 2 perxenates perchlorates fluorosulfates and many adducts with Lewis acids and bases (Bartlett and Sladky, 1973). Krypton compounds are less stable than xenon compounds, hence only about a dozen have been prepared KrF and derivatives of KrF2> such as KrF+SbF, KrF+VF, and KrF+Ta2F11. The chemistry of radon has been studied by radioactive tracer methods, since there are no stable isotopes of this element, and it has been deduced that radon also forms a difluoride and several complex salts. In this paper, some of the methods of preparation and properties of radon compounds are described. For further information concerning the chemistry, the reader is referred to a recent review (Stein, 1983). 

Bartlett, N. and Sladky, F. 0., The Chemistry of Krypton, Xenon, and Radon, in Comprehensive Inorganic Chemistry (A. F. Trotman-Dickenson, ed), Vol. 1, pp. 213-330, Pergamon Press, Oxford,... 

Krypton, xenon and radon will form a very limited number of compounds, e.g. with fluorine, but only under quite exceptional conditions. 

Krypton fluorocationic salts, 17 333 Krypton lasers, 14 684. See also KrF laser in laser light shows, 14 688 Krypton-xenon, purification and separation of, 17 361-362 Krypton-xenon column, 17 359, 360 Kubelka-Munk equation, 7 317-318 14 231 23 127... 

The functions rj0(T) and experimental data of selected substances which closely follow the theorem of corresponding states.20 Six substances were retained argon, krypton, xenon, methane, carbon monoxide, and nitrogen (neon was discarded on account of quantum translational effects). 

Battino, R. Solubility Data Series, Kertes, A. S., Editor, Krypton, Xenon, and Radon, Volume 2, Clever, H. L., Editor, Pergamon Press, Ltd.,... 

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