Welcome to European Tribune. It's gone a bit quiet around here these days, but it's still going.
by dense I mean it weighs a lot per unit volume, and hence tends to sink.

Ading to JakeS: you do mean atomic weight in the end (radon mass per unit volume at a given air pressure depends on concentration). But it is actually true that radon can concentrate in 'poodles' due to stratification of still air (in a basement or mine).

*Lunatic*, n.
One whose delusions are out of fashion.

by DoDo on Thu Mar 31st, 2011 at 07:46:25 AM EST
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