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{{Element | name=Hydrogen | symbol=H | anumber=1 | amass=1.001 amu | noe=1 | class=Gas| cstructure=Unknown | color=None | }}
{{Element
| name= Hydrogen
| caption=
| symbol=H
| class=Group 1
| amass=1.001
| stableisotopes=
| unstableisotopes=
| meltingpoint=−259.16
| boilingpoint=−252.879
| density=0.08988
| hardness=
| abundance=0.0000005
| oxidation=-1, +1
| date=1766
| discname=[[Henry Cavendish]]
| origname=
| uses=
| obtained=
}}
'''Hydrogen''' is the most abundant of all the [[element]]s,<ref>Hydrogen makes up roughly 75% of the matter in the [[universe]].</ref> and has the [[chemical symbol]] H and an [[atomic number]] of 1. Despite this abundance, naturally occurring elemental hydrogen is extremely rare on [[Earth]].
'''Hydrogen''' is the most abundant of all the [[element]]s,<ref>Hydrogen makes up roughly 75% of the matter in the [[universe]].</ref> and has the [[chemical symbol]] H and an [[atomic number]] of 1. Despite this abundance, naturally occurring elemental hydrogen is extremely rare on [[Earth]].