g arrange the gases in order of increasing density when they are all under stp conditions. Argon florine neon chlorine

Florine, Neon, Chlorine and Argon.

Explanation:

The density of a gas varies in direct proportion with its molecular mass. This means, higher molecular mass gases would have higher density and vice versa.

Increasing Density = Increasing Molecular mass

Arranging Argon, Florine, Neon and Chlorine in order of increasing molecular mass, we have;

Florine, Neon, Chlorine and Argon.

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there are no statements provided but here is why:

sulfur belongs to group 16 because it can be found in nature whether it is in a free or combined state.

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