why were the compounds of nobel gasses discovered late. why do nobel gasses form compounds with oxygen and fluorine
Noble gasses have full valence shell – 8 paired electrons (this value correspond to number of element’s Group in Periodical table; 8 Group is the last Group in Periodical table). They are stable and chemically nonreactive. That is why they do not form compounds with another elements which have unpaired electrons. But noble gas Xenon forms compounds with Oxygen and Fluorine. Both of this elements are very electronegative and reactive elements with high value of electronegativity. The process of Oxygen’s compounds formation names oxidation. The same process occurs when noble gasses react with Oxygen and Fluorine.