The properties indicated are generally those of unalloyed aluminum with a purity level ("titre") of 99.99%. Where this is not the case, the composition or standard designation is specified.
Aluminum, chemical symbol Al, has atomic number Z = 13 which corresponds to 13 electrons distributed over the s and p orbital layers as follows:
1s
2
, 2s
2
, 2p
6
, 3s
2
, 3p
1
Aluminum belongs to Group IIIa of the Periodic...
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