Difference between pages "Template:Infobox helium" and "Template:Infobox helium/sandbox"
(Difference between pages)
Jump to navigation
Jump to search
(Created page with "{{Infobox element |name = helium |number = 2 |symbol = He |abundance = |abundance in earth's crust = |abundance in oceans = |abundance in solar system = |left = hydrogen |...") |
(Created page with "{{Infobox element/sandbox |name=helium |number=2 |symbol=He |pronounce={{IPAc-en|ˈ|h|iː|l|i|ə|m}} |pronounce 2={{respell|HEE|lee-əm}} |left=hydrogen |right=lithium...") |
||
| Line 1: | Line 1: | ||
{{Infobox element | {{Infobox element/sandbox | ||
|name = helium | |name=helium | ||
|number = 2 | |number=2 | ||
|symbol = He | |symbol=He | ||
| | |pronounce={{IPAc-en|ˈ|h|iː|l|i|ə|m}} | ||
| | |pronounce 2={{respell|HEE|lee-əm}} | ||
| | |left=[[hydrogen]] | ||
| | |right=[[lithium]] | ||
|left = [[hydrogen]] | |above=- | ||
|right = [[lithium]] | |below=[[neon|Ne]] | ||
|above = | |category=noble gas | ||
|below = [[neon|Ne]] | |category comment= | ||
|appearance = colorless gas, exhibiting a | |group=18 | ||
|image name = Helium discharge tube.jpg | |period=1 | ||
|image | |block=s | ||
|electrons per shell = 2 | |category color= | ||
|phase = | |appearance=colorless gas, exhibiting a red-orange glow when placed in a high-voltage electric field | ||
|phase comment = | |image name=Helium discharge tube.jpg | ||
|density gplstp = 0.1786 | |image name comment= | ||
|density gpcm3nrt = | |image name 2=Helium spectra.jpg | ||
|density gpcm3bp = 0.125 | |image name 2 comment=Spectral lines of helium | ||
|density gpcm3mp = 0.145 | |standard atomic weight={{val|4.002602|(2)}} | ||
|melting point K = 0.95 | |standard atomic weight ref={{CIAAW2016}} | ||
|melting point C = −272.20 | |electron configuration=1s<sup>2</sup> | ||
|melting point F = −457.96 | |electrons per shell=2 | ||
|melting point comment = (at 2.5 MPa) | |color= | ||
|boiling point K = 4.222 | |phase=gas | ||
|boiling point C = −268.928 | |phase comment= | ||
|boiling point F = −452.070 | |density gplstp=0.1786 | ||
|triple point K = 2.177 | |density gpcm3nrt= | ||
|triple point kPa = 5.043 | |density gpcm3bp=0.125 | ||
|critical point K = 5.1953 | |density gpcm3mp=0.145 | ||
|critical point MPa = 0.22746 | |melting point K=0.95 | ||
|heat fusion = 0.0138 | |melting point C=−272.20 | ||
|heat vaporization = 0.0829 | |melting point F=−457.96 | ||
|heat capacity = | |melting point comment=(at 2.5 MPa) | ||
|boiling point K=4.222 | |||
|vapor pressure 1 = | |boiling point C=−268.928 | ||
|vapor pressure 10 = | |boiling point F=−452.070 | ||
|vapor pressure 100 = 1.23 | |triple point K=2.177 | ||
|vapor pressure 1 k = 1.67 | |triple point kPa=5.043 | ||
|vapor pressure 10 k = 2.48 | |critical point K=5.1953 | ||
|vapor pressure 100 k = 4.21 | |critical point MPa=0.22746 | ||
|vapor pressure comment = (defined by [[International Temperature Scale of 1990|ITS-90]]) | |heat fusion=0.0138 | ||
|crystal structure = hexagonal close-packed | |heat vaporization=0.0829 | ||
|electronegativity = no data | |heat capacity=5[[Gas constant|R]]/2 = 20.786 | ||
|number of ionization energies = 2 | |vapor pressure 1= | ||
|ionization energy 1 = 2372.3 | |vapor pressure 10= | ||
|ionization energy 2 = 5250.5 | |vapor pressure 100=1.23 | ||
|ionization energy 3 = | |vapor pressure 1 k=1.67 | ||
|atomic radius = | |vapor pressure 10 k=2.48 | ||
|atomic radius calculated = | |vapor pressure 100 k=4.21 | ||
|covalent radius = 28 | |vapor pressure comment=(defined by [[International Temperature Scale of 1990|ITS-90]]) | ||
|Van der Waals radius = 140 | |crystal structure=hexagonal close-packed | ||
|magnetic ordering = [[diamagnetic]] | |oxidation states='''0''' | ||
|magnetic ordering ref = <ref>[http://www-d0.fnal.gov/hardware/cal/lvps_info/engineering/elementmagn.pdf Magnetic susceptibility of the elements and inorganic compounds], in Handbook of Chemistry and Physics 81st edition, CRC press.</ref> | |oxidation states comment= | ||
|electrical resistivity = | |electronegativity=no data | ||
|electrical resistivity at 0 = | |number of ionization energies=2 | ||
|electrical resistivity at 20 = | |ionization energy 1=2372.3 | ||
|thermal conductivity = 0.1513 | |ionization energy 2=5250.5 | ||
|thermal conductivity 2 = | |ionization energy 3= | ||
|thermal diffusivity = | |atomic radius= | ||
|thermal expansion = | |atomic radius calculated= | ||
|thermal expansion at 25 = | |covalent radius=28 | ||
|speed of sound = 972 | |Van der Waals radius=140 | ||
|speed of sound rod at 20 = | |magnetic ordering=[[diamagnetic]] | ||
|speed of sound rod at r.t. = | |magnetic ordering ref=<ref>[http://www-d0.fnal.gov/hardware/cal/lvps_info/engineering/elementmagn.pdf Magnetic susceptibility of the elements and inorganic compounds], in Handbook of Chemistry and Physics 81st edition, CRC press.</ref> | ||
|electrical resistivity= | |||
|electrical resistivity at 0= | |||
|Young's modulus = | |electrical resistivity at 20= | ||
|Shear modulus = | |thermal conductivity=0.1513 | ||
|Bulk modulus = | |thermal conductivity 2= | ||
|Poisson ratio = | |thermal diffusivity= | ||
|Mohs hardness = | |thermal expansion= | ||
|Vickers hardness = | |thermal expansion at 25= | ||
|Brinell hardness = | |speed of sound=972 | ||
|CAS number = 7440-59-7 | |speed of sound rod at 20= | ||
|isotopes = | |speed of sound rod at r.t.= | ||
{{Infobox element/isotopes stable | mn = 3 | sym = He | na = 0. | |Young's modulus= | ||
{{Infobox element/isotopes stable | mn = 4 | sym = He | na = 99. | |Shear modulus= | ||
|isotopes comment = | |Bulk modulus= | ||
|naming = after [[Helios]], Greek | |Poisson ratio= | ||
|predicted by = | |Mohs hardness= | ||
|prediction date = | |Vickers hardness= | ||
|discovered by = [[Pierre Janssen]], [[Norman Lockyer]] | |Brinell hardness= | ||
|discovery date = 1868 | |CAS number=7440-59-7 | ||
|first isolation by = [[William Ramsay]], [[Per Teodor Cleve]], [[Abraham Langlet]] | |isotopes= | ||
|first isolation date = 1895 | {{Infobox element/isotopes stable | mn=3 | sym=He | na=0.000137%* | n=1 | link=Helium-3 }} | ||
{{Infobox element/isotopes stable | mn=4 | sym=He | na=99.999863%* | n=2 | link=Helium-4 }} | |||
}} | |isotopes comment=<nowiki>*</nowiki> Atmospheric value, abundance may differ elsewhere | ||
|naming=after [[Helios]], Greek god of the Sun | |||
|predicted by= | |||
|prediction date= | |||
|discovered by=[[Pierre Janssen]], [[Norman Lockyer]] | |||
|discovery date=1868 | |||
|first isolation by=[[William Ramsay]], [[Per Teodor Cleve]], [[Abraham Langlet]] | |||
|first isolation date=1895 | |||
}}<noinclude> | |||
{{Template reference list}} | {{Template reference list}} | ||
{documentation|1=Template:Infobox element/doc}} | |||
{ | |||
</noinclude> | </noinclude> | ||