Re: My favourite
Actually, helium escapes from things because of its extremely small size - just two protons, two electrons, and two neutrons, combined with being inert. Neon stays in glass for a very long time. (Like neon signs.)
Actually, helium escapes from things because of its extremely small size - just two protons, two electrons, and two neutrons, combined with being inert. Neon stays in glass for a very long time. (Like neon signs.)