Category:Hydrogen: Difference between revisions
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[[File:Hydrogen 2005 Liquid Hydrogen Bubble Chamber.jpg|200px|thumb|right|The first track of a liquid hydrogen bubble chamber - Photo by John Wood.]] | |||
A chemical element with the symbol H and the atomic number of 6. It constitutes 75% of the known mass of the universe | |||
[[Category:Elements|{{PAGENAME}}]] | |||
Latest revision as of 15:57, 13 February 2013
A chemical element with the symbol H and the atomic number of 6. It constitutes 75% of the known mass of the universe
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