Aluminium

13
Al
Gruppe
13
Periode
3
Blok
p
Protons
Electrons
Neutrons
13
13
14
General Properties
Atomnummer
13
Atommasse
26,9815386
Mass Number
27
Kategori
Post-overgangsmetaller
Farve
Silver
Radioactive
Nej
From the Latin word alumen, alum
Krystalstruktur
Fladecentreret Kubisk
History
In 1761, Guyton de Morveau proposed the name alumine for the base in alum, and Antoine Lavoisier, in 1787, thought this to be the oxide of a still undiscovered metal.

Sir Humphry Davy identified the existence of a metal base of alum in 1808.

Hans Christian Ørsted was the first to isolate metallic aluminum in 1825 in impure form.

Friedrich Wöhler is generally credited with having isolated the metal in 1827.
Elektroner i hver skal
2, 8, 3
Elektronkonfiguration
[Ne] 3s2 3p1
Al
Aluminum does not stick to magnets under normal conditions
Physical Properties
Tilstandsform
Fast stof
Massefylde
2,698 g/cm3
Smeltepunkt
933,47 K | 660,32 °C | 1220,58 °F
Kogepunkt
2792,15 K | 2519 °C | 4566,2 °F
Smeltevarme
10,7 kJ/mol
Fordampningsvarme
293 kJ/mol
Varmefylde
0,897 J/g·K
Abundance in Earth's crust
8,1%
Abundance in Universe
0,005%
Chunk
Billede akkrediteringer: Images-of-elements
Chunk of aluminum
CAS Number
7429-90-5
PubChem CID Number
5359268
Atomic Properties
Atomradius
143 pm
Kovalent radius
121 pm
Elektronegativitet
1,61 (Paulings skala)
Ionization Potential
5,9858 eV
Atomic Volume
9,98 cm3/mol
Varmeledningsevne
2,37 W/cm·K
Oxidationstrin
1, 3
Applications
Aluminum is used in an extensive range of products from drinks cans to window frames and boats to aircraft.

It is used in electrical transmission lines.

It is also used for kitchen utensils, outside building decoration, and in thousands of industrial applications.

When alloyed with small amounts of copper, magnesium, silicon, manganese, or other elements impart a variety of useful properties.
Aluminum is not known to be toxic
Isotoper
Stable Isotopes
27Al
Unstable Isotopes
21Al, 22Al, 23Al, 24Al, 25Al, 26Al, 28Al, 29Al, 30Al, 31Al, 32Al, 33Al, 34Al, 35Al, 36Al, 37Al, 38Al, 39Al, 40Al, 41Al, 42Al