Question

Is it easy to study structure of noble gas compounds?

Answer 1

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It was initially believed that the noble gases could not form compounds due to their full valence shell of electrons that rendered them very chemically stable and unreactive. All noble gases have full s and p outer electron shells (except helium, which has no p sublevel), and so do not form chemical compounds easily.

Answer 2

Explanation:

then you will need the total energy of an isolated system's you can see the status is Constant