Alumíniu

13

magnesium ← aluminium → silicon

B
↑
Al
↓
Ga

Periodic Table - Extended Periodic Table

General

Lagyu, Symbulu, Numeru

aluminium, Al, 13

Chemical series

poor metals

Lupung, Period, Bloki

13, 3, p

Itsura

silvery

Standard atomic weight

26.9815386 (8) g·mol⁻¹

Electron configuration

[Ne] 3s² 3p¹

Electrons per shell

2, 8, 3

Physical properties

Phase

solid

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

Heat capacity

(25 °C) 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

Crystal structure

face centered cubic
0.4032 nm

Oxidation states

3
(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

125 pm

Atomic radius (calc.)

118 pm

Covalent radius

118 pm

Miscellaneous

Magnetic ordering

paramagnetic

Electrical resistivity

(20 °C) 26.50 nΩ·m

Thermal conductivity

(300 K) 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) 5000 m·s⁻¹

70 GPa

26 GPa

76 GPa

0.35

2.75

167 MPa

245 MPa

7429-90-5

Selected isotopes

Main article: Isotopes of aluminium
iso	NA	half-life	DM	DE (MeV)	DP
²⁶Al	syn	7.17×10⁵ y	β⁺	1.17	²⁶Mg
			ε	-	²⁶Mg
			γ	1.8086	-
²⁷Al	100%	Ing Al stable ya kambe ning 14 neutrons

References

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Dalerayan

Lawen ya rin

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WebElements.com – Aluminium
World production of primary aluminum, by country
Social and Environmental Impact of the Aluminium Industry Archived Eneru 10, 2006 at the Wayback Machine
History of Aluminium Archived Pebreru 7, 2006 at the Wayback Machine

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