Is radon a solid, liquid, or gas at room temperature?

1 Answer
anor277
Oct 2, 2016

The normal boiling point of radon is #-61# #""^@C#, so it is barely a gas at #RT#.

Explanation:

While radon is an inert gas, it is an unstable nuclide with the half life of its common isotope, #""^222Rn#, under 4 days.

As chemists, we are more interested in its boiling point/melting point etc. At #0# #""^@C# the gas has a density of just under #10*g*L^-1#, which is very dense indeed.

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