Which noble gas is most abundant in the atmosphere?

Noble gases are absorbed by

The melting and boiling points of noble gases are ...

Identify the molecules having the same number of lone pairs on $Xe$ in the following molecules:
$(i) XeO_3$ $(ii) XeOF_4$ $(iii) XeF_6$

The reaction of $Xe$ and $O_2F_2$ gives a $Xe$ compound $P$. The number of moles of $HF$ produced by the complete hydrolysis of $1 \ mol$ of $P$ is. . . . . .

Number of unpaired electrons in an inert gas is: