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Linia 1:
{{Ficha d'elemento quimico
|name=Helio
|number=2
|symbol=He
|left=[[Hidrochén]]
|right=[[Litio]]
|above=-
|below=[[neón|Ne]]
|series=Gas noble
|series comment=
|group=18
|period=1
|block=s
|series color=
|phase color=
|appearance=Incoloro
|image name=
|image name comment=
|image name 2=
|image name 2 comment=
|atomic mass=4.002602
|atomic mass 2=2
|atomic mass comment=
|electron configuration=1s<sup>2</sup>
|electrons per shell=2
|color=
|phase=gas
|phase comment=
|density gplstp=0.1786
|density gpcm3nrt=
|density gpcm3mp=
|melting point K=(at 2.5 MPa) 0.95
|melting point C=−272.20
|melting point F=−457.96
|boiling point K=4.22
|boiling point C=−268.93
|boiling point F=−452.07
|critical point K=5.19
|critical point MPa=0.227
|heat fusion=0.0138
|heat vaporization=0.0829
|heat capacity=20.786
|vapor pressure 1=&nbsp;
|vapor pressure 10=&nbsp;
|vapor pressure 100=1.23
|vapor pressure 1 k=1.67
|vapor pressure 10 k=2.48
|vapor pressure 100 k=4.21
|vapor pressure comment=
|crystal structure=Hexagonal
|oxidation states=
|oxidation states comment=
|electronegativity=
|number of ionization energies=2
|1st ionization energy=2372.3
|2nd ionization energy=5250.5
|3rd ionization energy=
|atomic radius=
|atomic radius calculated=[[1 E-11 m|31]]
|covalent radius=[[1 E-11 m|32]]
|Van der Waals radius=[[1 E-10 m|140]]
|magnetic ordering=
|electrical resistivity=
|electrical resistivity at 0=
|electrical resistivity at 20=
|thermal conductivity=0.1513&nbsp;
|thermal conductivity 2=
|thermal diffusivity=
|thermal expansion=
|thermal expansion at 25=
|speed of sound rod at 20=
|speed of sound rod at r.t.=
|Young's modulus=
|Shear modulus=
|Bulk modulus=
|Poisson ratio=
|Mohs hardness=
|Vickers hardness=
|Brinell hardness=
|CAS number=7440-59-7
|isotopes=
{{Elementbox_isotopes_stable | mn=3 | sym=He | na=0.000137%| n=1 | link=Helium-3 }}
{{Elementbox_isotopes_stable | mn=4 | sym=He | na=99.999863%| n=2 | link=Helium-4 }}
|isotopes comment=
}}
L''''helio Es un elemento quimico numero atomico 18 sirve para el movimiento de las motos es decir es el accelerador que te impulsa. Simbolo:He'''
Obteniu de "https://an.wikipedia.org/wiki/Helio"