Since we are talking about atmospheric gases. Little know fact. Oxygen is paramagnetic. I didn't know this until I went to a class reunion and went to a lecture on low temperature physics.
If you have liquid oxygen in a suspended test tube it is attracted by a magnet and will swing toward the test tube.
Here are a couple of experiments. The first on is the one I saw during my reunion low temperature lecture. On the second experiment it is will suspend itself between two magnetic poles.