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In the covering atomic model, electron occupy different energy levels, or shells. The K and L shells are displayed for a neon atom.

Screened from the nucleus by intervening electrons, the outer (valence) electrons of the atom of the more heavier noble gases are organized less firmly and can be removed (ionized) more easily indigenous the atom than have the right to the electrons of the lighter noble gases. The energy required because that the remove of one electron is called the very first ionization energy. In 1962, while functioning at the college of british Columbia, british chemist Neil Bartlett found that platinum hexafluoride would eliminate an electron native (oxidize) molecular oxygen to form the salt . The very first ionization power of xenon is really close to that of oxygen; hence Bartlett assumed that a salt the xenon can be formed similarly. In the same year, Bartlett created that the is indeed possible to eliminate electrons native xenon by chemistry means. He proved that the interaction of PtF6 vapour in the presence of xenon gas at room temperature developed a yellow-orange solid link then formulated as . (This link is now well-known to be a mixture that , , and also PtF5.) quickly after the early report the this discovery, two other teams the chemists individually prepared and subsequently reported fluorides the xenon—namely, XeF2 and XeF4. These accomplishments were soon adhered to by the preparation of various other xenon compounds and also of the fluorides that radon (1962) and krypton (1963).

See more: Ch4+O2=Co2+H2O - ((Ch4)) + O2 = Co2 + H2O

In 2006, researchers at the share Institute for Nuclear research study in Dubna, Russia, announced that oganesson, the next noble gas, had been made in 2002 and 2005 in a cyclotron. (Most facets with atomic numbers higher than 92—i.e., the transuranium elements—have to be made in fragment accelerators.) No physics or chemistry properties of oganesson can be directly determined since only a few atoms the oganesson have been produced.