Argon is used:

The structure of the noble gas compound $XeF_4$ is

The complete hydrolysis of $XeF_{6}$ results in the formation of

How are $XeO_3$ and $XeOF_4$ prepared?

The incorrect statement regarding the following reactions is:
$XeF_6 + \text{Excess } H_2O \rightarrow 'X' + HF$
$XeF_6 + 2 H_2O \rightarrow 'Y' + HF$

Which elements were discovered by the scientists Ramsay and Glenn $T$. Seaborg?