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Undid revision 1235522985 by Mrfoogles (talk): On second thought, the larger picture is ok for hydrogen & apparently works for previews, so leaving it |
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{{infobox element
|name =hydrogen
|symbol=H
|Z=1
|number=1
|abundance=
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|abundance in oceans=
|abundance in solar system=
|left=
|right=[[helium]]
|above=–
|below=[[Lithium|Li]]
|appearance=
|image name=
|image upright=1.35
|electrons per shell=1
|phase=
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|density gpcm3mp comment=(solid: 0.0763 g/cm<sup>3</sup>)<ref>{{cite book|url=https://books.google.com/books?id=vEwj1WZKThEC&pg=PA240|page=240|title=Inorganic chemistry|author1=Wiberg, Egon |author2=Wiberg, Nils |author3=Holleman, Arnold Frederick |publisher=Academic Press|year=2001|isbn=978-0123526519}}</ref>
|density gpcm3bp=0.07099
|melting point prefix=(
|melting point K=13.99
|melting point C=−259.16
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|sublimation point C=
|sublimation point F=
|boiling point prefix=(
|boiling point K=20.271
|boiling point C=−252.879
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|critical point K=32.938
|critical point MPa=1.2858
|heat fusion=(
|heat fusion 2=
|heat vaporization=(
|heat capacity=(
|vapor pressure 1=
|vapor pressure 10=
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|vapor pressure comment=
|crystal structure=hexagonal
|crystal structure Pearson symbol=hP4
|lattice constants=''a'' = 378.97 pm<br />''c'' = 618.31 pm (at triple point)<ref name="Arblaster 2018">{{cite book |last=Arblaster |first= John W. |title=Selected Values of the Crystallographic Properties of Elements |publisher=ASM International |publication-place=Materials Park, Ohio |date=2018 |isbn=978-1-62708-155-9}}</ref>
|electronegativity=2.20
|number of ionization energies=1
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|Brinell hardness=
|CAS number=12385-13-6
|CAS number comment=<br>1333-74-0 (
|predicted by=
|prediction date=
|discovered by=[[Henry Cavendish]]<ref name="Nostrand">{{cite encyclopedia| title=Hydrogen| encyclopedia=Van Nostrand's Encyclopedia of Chemistry| pages=797–799| publisher=Wylie-Interscience| year=2005| isbn=978-0-471-61525-5}}</ref><ref name="nbb">{{cite book| last=Emsley| first=John| title=Nature's Building Blocks| publisher=Oxford University Press| year=2001| location=Oxford| pages=183–191| isbn=978-0-19-850341-5}}</ref>
|discovery date=1766
|named by=[[Louis-Bernard Guyton de Morveau]]<br>[[Antoine Lavoisier]]<ref>{{cite journal |last1=Miśkowiec |first1=Paweł |title=Name game: The naming history of the chemical elements—part 1—from antiquity till the end of 18th century |journal=Foundations of Chemistry |date=April 2023 |volume=25 |issue=1 |pages=29–51 |doi=10.1007/s10698-022-09448-5 |url=https://link.springer.com/article/10.1007/s10698-022-09448-5}}</ref><ref name="Stwertka">{{cite book| last=Stwertka| first=Albert| title=A Guide to the Elements| publisher=Oxford University Press| year=1996| pages=16–21| isbn=978-0-19-508083-4}}</ref>
|named date=
|history comment label=
|history comment=
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