Why Xe forms more compounds than Kr?

Why Xe forms compounds with fluorine and oxygen only?

Why Xe forms most of the compound among the other inert gas?

Xe readily forms compounds but Kr does not form compounds easily. Why?

Which element out of the following He, Ar, Kr and Xe forms least number of compounds ?

Which element out of the He, Ar, Kr and Xe forms least number of compounds ?

Why only Xe has been found to form some compounds amongst noble gases ?

Among noble gases, only Xe is known to form chemical compounds. Why ?

Suggest reasons why the only binary compounds of the noble gases are fluorides and oxides of Kr ,Xe and Rn ?