Aluminio

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Aluminium
13Al
B

Al

Ga
magnesiumaluminiumsilicon
Appearance
silvery gray metallic


Spectral lines of aluminium
General properties
Name, simbolo, kaiphan aluminium, Al, 13
Pronunciation Plantilya:IPAc-en
Plantilya:Respell;

Plantilya:IPAc-en
Plantilya:Respell

Element category other metal
Group, period, block 133, p
Standard atomic weight Plantilya:Val(13)
Electron configuration [Ne] 3s2 3p1
2, 8, 3
Electron shells of aluminium (2, 8, 3)
History
Discovery Hans Christian Ørsted[1] (1825)
First isolation Friedrich Wöhler[2] (1827)
Named by Humphry Davy (1808)
Physical properties
Phase magahi
Density (near r.t.) 2.70 g·cm−3
Liquid density at m.p. 2.375 g·cm−3
Melting point 933.47 K, 660.32 °C, 1220.58 °F
Boiling point 2792 K, 2519 °C, 4566 °F
Heat of fusion 10.71 kJ·mol−1
Heat of vaporization 294.0 kJ·mol−1
Molar heat capacity 24.200 J·mol−1·K−1
Vapor pressure
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 1482 1632 1817 2054 2364 2790
Atomic properties
Oxidation states 3, 2[3], 1[4]
(amphoteric oxide)
Electronegativity 1.61 (Pauling scale)
Ionization energies
(more)
1st: 577.5 kJ·mol−1
2nd: 1816.7 kJ·mol−1
3rd: 2744.8 kJ·mol−1
Atomic radius 143 pm
Covalent radius Plantilya:Val pm
Van der Waals radius 184 pm
Miscellanea
Crystal structure face-centered cubic
Aluminium has a face-centered cubic crystal structure
Magnetic ordering paramagnetic[5]
Electrical resistivity (20 °C) 28.2 nΩ·m
Thermal conductivity 237 W·m−1·K−1
Thermal expansion (25 °C) 23.1 µm·m−1·K−1
Speed of sound (thin rod) (r.t.) (rolled) 5,000 m·s−1
Young's modulus 70 GPa
Shear modulus 26 GPa
Bulk modulus 76 GPa
Poisson ratio 0.35
Mohs hardness 2.75
Vickers hardness 167 MPa
Brinell hardness 245 MPa
CAS registry number 7429-90-5
Most stable isotopes
Main article: Isotopes of aluminium
iso NA half-life DM DE (MeV) DP
26Al trace Plantilya:Val β+ 1.17 26Mg
ε - 26Mg
γ 1.8086 -
27Al 100% 27Al is stable with 14 neutrons
t  h  u
· r

Ang aluminio (Iningles aluminium) mao ang elementong kimiko sa talaang peryodiko nga may simbolo nga Al ug kaiphan nga atomik 13. Ang aluminio mao ang puthaw.

Ang mga gi basihan niini[usba | edit source]

  1. Periodic Table: Aluminum. ChemicalElements.com (12 February 2009). Retrieved on 2012-03-06.
  2. Wöhler, F. (1827). "Űber das Aluminium". Annalen der Physik und Chemie 11: 146–161. 
  3. Aluminium monoxide
  4. Aluminium iodide
  5. Lide, D. R. (2000). "Magnetic susceptibility of the elements and inorganic compounds". CRC Handbook of Chemistry and Physics (81st ed.), CRC Press. ISBN 0849304814, http://www-d0.fnal.gov/hardware/cal/lvps_info/engineering/elementmagn.pdf. 


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