Al - Aluminum

A common metal comprising nearly ten percent of the crust of the earth, aluminum has been known since its preparation by Hans Oerstead 1825.

Atomic number - 13 Density g/mL 2 .7

Atomic weight u 26 .98154 Melting point K 933 .25

Bonding radius A 1 .18 Boiling point K 2740

Atomic radius A 1 .82 Heat of vaporization kJ/mol 293 .4

Ionization Potential V 5 .986 Heat of fusion kJ/mol 10 .79

Electronegativity - 1 .61 Specific heat J/gK 0 .9

The oxide is amphoteric.
Crystal are face centered cubic.

Electron config. : [Ne] 3s² 3p¹

Isotopes of Al: Click mass number for decay process, product for element page.

022 70 msec EC/EC2p/ECp,18.580 Mg-22/Ne-20/Na-21 22.019517	023 0.47 sec EC/ECp,12.240 Mg-23/Na-22 23.007267	024 2.053 sec EC/ECa,13.878 Mg-24/Ne-20 23.999940	024a 131.3 msec ECa,4.988 MeV Ne-20 24.000398	025 7.183 sec EC,4.277 MeV Mg-25 24.990428	026 7.4E+5 yr EC,4.004 MeV Mg-26 25.986891	027 100% Stable 26.981538
028 2.2414 min B-,4.642 MeV Si-28 27.981910	029 6.56 min B-,3.680 MeV Si-29 28.980444	030 3.60 sec B-,8.561 MeV Si-30 29.982960	031 644 msec B-,7.995 MeV Si-31 30.983946	032 33 msec B-,13.020 MeV Si-32 31.988126	034 60 msec B-/B-n,17.090 Si-34/Si-33 33.996929	035 150 msec B-/B-n,14.300 Si-35/Si-34 34.999935
MASS abund. Halflife Particle, Energy Decay Product(s) Isotopic Mass

Atomic number	-	13		Density	g/mL	2	.7
Atomic weight	u	26	.98154	Melting point	K	933	.25
Bonding radius	A	1	.18	Boiling point	K	2740
Atomic radius	A	1	.82	Heat of vaporization	kJ/mol	293	.4
Ionization Potential	V	5	.986	Heat of fusion	kJ/mol	10	.79
Electronegativity	-	1	.61	Specific heat	J/gK	0	.9
The oxide is amphoteric.				Crystal are face centered cubic.
Electron config. : [Ne] 3s² 3p¹