Original media from our community.
Ampoule of |he| in a bottle
The Noble Gas group, in ampoules. There's not much to see here. From left to right: |he|, |ne|, |ar|, |kr|, |xe|.
Helium gas in an ampoule with a high voltage source next to it, which causes a beautiful pink and white glow. This is similar to how Neon lamps work.
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