வார்ப்புரு:தகவற்சட்டம் ஐதரசன்
{{Elementbox
 |name=ஐதரசன்
 |other name=Hydrogen
 |symbol=H
 |number=1
 |pronounce={{IPAc-en|ˈ|h|aɪ|d|r|ɵ|dʒ|ə|n}}&lt;ref&gt;{{cite book
  |last=Simpson|first=J.A. |last2=Weiner|first2=E.S.C.
  |chapter=நீரியம் |title=Oxford English Dictionary
  |edition=2nd|volume=7 |publisher=[[ஒக்ஸ்போர்ட் பல்கலைக்கழகப் பதிப்பகம்]]
  |year=1989 |isbn=0-19-861219-2 }}&lt;/ref&gt; {{respell|HYE|dro-jin}}
 |left=-
 |right=[[ஈலியம்]]
 |above=-
 |below=[[லித்தியம் |Li]]
 |series=அலோகம்
 |series comment=
 |group=1
 |period=1
 |block=s
 |series color=
 |phase color=
 |appearance=நிறமற்ற வளிமம்
 |image name=Hydrogen discharge tube.jpg
 |image size=
 |image name comment=அதன் பிளாஸ்மா நிலையில் ஊதா ஒளிர்வு
 |image name 2=Hydrogen Spectra.jpg
 |image size 2=
 |image name 2 comment=ஐதரசனின் நிறமாலைக் கோடுகள்
 |atomic mass=1.00794
 |atomic mass 2=7
 |atomic mass comment=
 |electron configuration=1s&lt;sup&gt;1&lt;/sup&gt;
 |electrons per shell=1
 |color=நிறமற்றது
 |phase=வளிமம்
 |phase comment=
 |density gplstp=0.08988
 |density gpcm3nrt=
 |density gpcm3nrt 3=
 |density gpcm3mp=0.07 (0.0763 solid)&lt;ref&gt;{{cite book|url=http://books.google.com/books?id=vEwj1WZKThEC&amp;pg=PA240|page=240|title=Inorganic chemistry|author=Wiberg, Egon; Wiberg, Nils; Holleman, Arnold Frederick|publisher=Academic Press|year=2001|isbn=0123526515}}&lt;/ref&gt;
 |density gpcm3bp=0.07099
 |melting point K=14.01
 |melting point C=-259.14
 |melting point F=-434.45
 |melting point pressure=
 |sublimation point K=
 |sublimation point C=
 |sublimation point F=
 |sublimation point pressure=
 |boiling point K=20.28
 |boiling point C=-252.87
 |boiling point F=-423.17
 |boiling point pressure=
 |triple point K=13.8033
 |triple point kPa=7.042
 |triple point K 2=
 |triple point kPa 2=
 |critical point K=32.97
 |critical point MPa=1.293
 |heat fusion=(H&lt;sub&gt;2&lt;/sub&gt;) 0.117
 |heat fusion 2=
 |heat fusion pressure=
 |heat vaporization=(H&lt;sub&gt;2&lt;/sub&gt;) 0.904
 |heat vaporization pressure=
 |heat capacity=(H&lt;sub&gt;2&lt;/sub&gt;) 28.836
 |heat capacity pressure=
 |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
 |oxidation states=1, -1
 |oxidation states comment=amphoteric oxide
 |electronegativity=2.20
 |number of ionization energies=1
 |1st ionization energy=1312.0
 |2nd ionization energy=
 |3rd ionization energy=
 |atomic radius=
 |atomic radius calculated=
 |covalent radius=31±5
 |Van der Waals radius=120
 |magnetic ordering=[[diamagnetic]]&lt;ref&gt;
 {{cite book
  |url=http://www-d0.fnal.gov/hardware/cal/lvps_info/engineering/elementmagn.pdf
  |chapter=Magnetic susceptibility of the elements and inorganic compounds
  |title=[[CRC Handbook of Chemistry and Physics]]
  |edition=81st
  |publisher=[[CRC Press]]
  |isbn=
 }}&lt;/ref&gt;
 |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=(gas, 27 °C) 1310
 |speed of sound rod at 20=
 |speed of sound rod at r.t.=
 |Tensile strength=
 |Young's modulus=
 |Shear modulus=
 |Bulk modulus=
 |Poisson ratio=
 |Mohs hardness=
 |Vickers hardness=
 |Brinell hardness=
 |CAS number=1333-74-0
 | isotopes =
 {{Elementbox_isotopes_stable | mn=1 | sym=H | na=99.985% | n=0 |link = நீரியம் அணு}}
 {{Elementbox_isotopes_stable | mn=2 | sym=H | na=0.015% | n=1 | link=Deuterium }}
 {{Elementbox_isotopes_decay | mn=3 | sym=H | na=[[Trace radioisotope|trace]] | hl=12.32 [[ஆண்டு|y]] | dm=[[பீட்டா சிதைவு|β&lt;sup&gt;&amp;minus;&lt;/sup&gt;]] | de=0.01861 | pn=3 | ps=[[ஈலியம்|He]] | link=Tritium }}
 {{elementbox_isotopes_decay|mn=4|sym=H|na=syn|hl=139(10) ys|dm=n|de=4.6(9)|pn=3|ps=H}}
 |engvar={{{engvar|en-us}}}
 |predicted by=
 |prediction date=
 |discovered by=[[என்றி கேவண்டிசு]]&lt;ref name=&quot;Nostrand&quot;&gt;{{cite encyclopedia| title=நீரியம்| encyclopedia=Van Nostrand's Encyclopedia of Chemistry| pages=797–799| publisher=Wylie-Interscience| year=2005| isbn=0-471-61525-0}}&lt;/ref&gt;&lt;ref name=&quot;nbb&quot;&gt;{{cite book| last=Emsley| first=John| title=Nature's Building Blocks| publisher=Oxford University Press| year=2001| location=Oxford| pages=183–191| isbn=0-19-850341-5}}&lt;/ref&gt;
 |discovery date=1766
 |named by=[[அந்துவான் இலவாசியே]]&lt;ref name=&quot;Stwertka&quot;&gt;{{cite book| last=Stwertka| first=Albert| title=A Guide to the Elements| publisher=Oxford University Press| year=1996| pages=16–21| isbn=0-19-508083-1}}&lt;/ref&gt;
 |named date=1783
 |history comment label=
 |history comment=
 }}&lt;noinclude&gt;
 {{template reference list}}
 [[பகுப்பு:தனிம அட்டவணை தகவற்சட்ட வார்ப்புருக்கள்]]