Template:infobox element/testcases

{{#invoke:InfoboxImage|InfoboxImage |image={{Infobox element/crystal structure|hexagonal|return=image}} | |upright=0.23 |sizedefault=frameless |class=notpageimage skin-invert |alt={{ucfirst:hexagonal}} crystal structure}}

{{infobox element/sandbox

|name =hydrogen

|symbol=H

|Z=1

|number=1

|abundance=

|abundance in earth's crust=

|abundance in oceans=

|abundance in solar system=

|left=(none)

|right=helium

|above=–

|below=Li

|appearance=Colorless gas

|image name=Hydrogen discharge tube.jpg

|image upright=1.35

|electrons per shell=1

|phase=

|phase comment=

|density gplstp=0.08988

|density gpcm3nrt=

|density gpcm3mp=0.07

|density gpcm3mp comment=(solid: 0.0763 g/cm³){{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}}

|density gpcm3bp=0.07099

|melting point prefix=({{chem2|H2}})

|melting point K=13.99

|melting point C=−259.16

|melting point F=−434.49

|sublimation point K=

|sublimation point C=

|sublimation point F=

|boiling point prefix=({{chem2|H2}})

|boiling point K=20.271

|boiling point C=−252.879

|boiling point F=−423.182

|triple point K=13.8033

|triple point kPa=7.041

|critical point K=32.938

|critical point MPa=1.2858

|heat fusion=({{chem2|H2}}) 0.117

|heat fusion 2=

|heat vaporization=({{chem2|H2}}) 0.904

|heat capacity=({{chem2|H2}}) 28.836

|vapor pressure 1=

|vapor pressure 10=

|vapor pressure 100=

|vapor pressure 1 k=

|vapor pressure 10 k=15

|vapor pressure 100 k=20

|vapor pressure comment=

|crystal structure=hexagonal

|crystal structure Pearson symbol=hP4

|lattice constants=a = 378.97 pm
c = 618.31 pm (at triple point){{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}}

|electronegativity=2.20

|number of ionization energies=1

|ionization energy 1=1312.0

|ionization energy 2=

|ionization energy 3=

|atomic radius=

|atomic radius calculated=

|covalent radius=31±5

|Van der Waals radius=120

|magnetic ordering=diamagnetic{{cite book |url=https://web.archive.org/web/20110303222309/http://www-d0.fnal.gov/hardware/cal/lvps_info/engineering/elementmagn.pdf|chapter=Magnetic susceptibility of the elements and inorganic compounds| editor = Lide, D. R. | title = CRC Handbook of Chemistry and Physics | edition = 86th | location = Boca Raton (FL) | publisher = CRC Press | year = 2005 | isbn = 978-0-8493-0486-6 }}

|electrical resistivity=

|electrical resistivity at 0=

|electrical resistivity at 20=

|thermal conductivity=0.1805

|thermal conductivity 2=

|thermal diffusivity=

|thermal expansion=

|thermal expansion at 25=

|speed of sound=1310

|speed of sound comment=(gas, 27 °C)

|speed of sound rod at 20=

|speed of sound rod at r.t.=

|magnetic susceptibility= {{val|−3.98|e=−6}}

|magnetic susceptibility ref= (298 K){{Cite book|title=CRC, Handbook of Chemistry and Physics|last=Weast|first=Robert|publisher=Chemical Rubber Company Publishing|year=1984|isbn=978-0-8493-0464-4|location=Boca Raton, Florida|pages=E110}}

|tensile strength=

|Young's modulus=

|Shear modulus=

|Bulk modulus=

|Poisson ratio=

|Mohs hardness=

|Vickers hardness=

|Brinell hardness=

|CAS number=12385-13-6

|CAS number comment=
1333-74-0 ({{chem2|H2}})

|predicted by=

|prediction date=

|discovered by=Henry Cavendish{{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}}{{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}}

|discovery date=1766

|named by=Louis-Bernard Guyton de Morveau
Antoine Lavoisier{{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}}{{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}}

|named date=1787

|history comment label=

|history comment=

|QID=Q556

}}

{{template reference list}}