Helium
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Helium (symbol He) is a chemical element, a gas with atomic number 2 on the periodic table. Helium has an atomic mass of 4.0026, and was discovered by Humans for the first time on Earth's European continent in the year 1895. (ST reference: Star Fleet Medical Reference Manual)
External links
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- Helium article at Memory Alpha, the wiki for canon Star Trek.
- Helium article at Wikipedia, the free encyclopedia.
- Helium article at TARDIS Data Core, the Wikia for Doctor Who sources.