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Why do the elements in group 18 exist as mono-atom?

April 26, 2017Chemistry elements exist group Mathematics

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Why do the elements in group 18 exist as mono-atom?

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Dear Purple Polar Bear: For additional information please see also: http://en.wikipedia.org/wiki/Noble_gas http://en.wikipedia.org/wiki/Electron_sh… http://en.wikipedia.org/wiki/Electron_co… http://en.wikipedia.org/wiki/Periodic_ta… http://en.wikipedia.org/wiki/Monatomic_i… http://en.wikipedia.org/wiki/Monatomic The elements in group number 18, the noble gases outermost electron shells are considered to be full and do not form bonds normally or very effectively with the other elements.