((Infobox element
|engvar=(({engvar|))}
|name =aluminium
|number =13
|Z =13
|symbol =Al
|alt name=Aluminum (U.S., Canada)
|abundance=
|abundance in earth's crust=
|abundance in oceans=
|abundance in solar system=
|left=[[magnesium]]
|right=[[silicon]]
|above=[[boron|B]]
|below=[[gallium|Ga]]
|appearance=Silvery gray metallic
|image name=Aluminium-4.jpg
|electrons per shell=2, 8, 3
|phase=
|phase comment=
|density= 2.699&nbsp;g/cm<sup>3</sup><ref name="Arblaster 2018" />
|density conditions=(at&nbsp;20°&nbsp;C)
|density gplstp=
|density gpcm3nrt=
|density gpcm3nrt 2=
|density gpcm3mp=2.375
|melting point K=933.47
|melting point C=660.32
|melting point F=1220.58
|boiling point K=2743
|boiling point C=2470
|boiling point F=4478
|triple point K=
|triple point kPa=
|critical point K=
|critical point MPa=
|heat fusion=10.71
|heat fusion 2=
|heat vaporization=284
|heat capacity=24.20
|vapor pressure 1=1482
|vapor pressure 10=1632
|vapor pressure 100=1817
|vapor pressure 1 k=2054
|vapor pressure 10 k=2364
|vapor pressure 100 k=2790
|vapor pressure comment=
|crystal structure=face-centered cubic
|crystal structure Pearson symbol=cF4
|lattice constant=''a''&nbsp;=&nbsp;404.93&nbsp;pm (at&nbsp;20&nbsp;°C)<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=1.61
|number of ionization energies=4
|ionization energy 1=577.5
|ionization energy 2=1816.7
|ionization energy 3=2744.8
|atomic radius=143
|atomic radius calculated=
|covalent radius=121±4
|Van der Waals radius=184
|magnetic ordering=[[paramagnetic]]
|magnetic ordering ref=<ref>
((cite book
|last1=Lide |first1=D. R.
|year=2000
|chapter=Magnetic susceptibility of the elements and inorganic compounds
|chapter-url=http://www-d0.fnal.gov/hardware/cal/lvps_info/engineering/elementmagn.pdf
|title=[[CRC Handbook of Chemistry and Physics]]
|edition=81st
|publisher=[[CRC Press]]
|isbn=0849304814
))</ref>
|magnetic susceptibility = ((val|+16.5|e=−6))
|magnetic susceptibility ref =
|electrical resistivity=
|electrical resistivity unit prefix=n
|electrical resistivity at 0=
|electrical resistivity at 20=26.5
|thermal conductivity=237
|thermal conductivity 2=
|thermal diffusivity=
|thermal expansion=<!-- see thermal expansion comment -->
|thermal expansion comment=((val|22.87|e=−6))/K (at&nbsp;20&nbsp;°C)<ref name="Arblaster 2018" />
|speed of sound=
|speed of sound rod at 20=
|speed of sound rod at r.t.=(rolled) 5000
|Young's modulus=70
|Shear modulus=26
|Bulk modulus=76
|Poisson ratio=0.35
|Mohs hardness=2.75
|Vickers hardness=160–350
|Brinell hardness=160–550
|CAS number=7429-90-5
|naming=from ''alumine'', obsolete name for ''[[alumina]]''
|predicted by=[[Antoine Lavoisier]]
|prediction date=1782
|discovered by=[[Hans Christian Ørsted]]
|discovery date=1824
|named by=[[Humphry Davy]]
|named date=1812((efn|Davy's 1812 written usage of the word ''aluminum'' was predated by other authors' usage of ''aluminium''. However, Davy is often mentioned as the person who named the element; he was the first to coin a name for aluminium: he used ''alumium'' in 1808. Other authors did not accept that name, choosing ''aluminium'' instead. See [[#Etymology|below]] for more details.))
|QID =Q663
))<!--

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((Infobox element/element navigation|symbol=Al))
((reflist|group=lower-alpha))
((template reference list))
One of these is a [[WP:REFNAME|named reference]]. It may be cited in the containing article as
*<nowiki><ref name="CIAAW2013" /></nowiki> for the source ''Atomic weights of the elements 2013'' (from subtemplates used by ((tl|Infobox element)))
((documentation|1=Template:Infobox element/doc))
</noinclude>