He lives in the room No.13 at the Periodic-Table-Apartment(PTA).
He boasts that it is light, even among the metal Little Elements, and he is going out to various places.
He lives in a Japanese yen coin, lives in a car's tire wheel, or lives in a can of juice.
He is often alloyed with hanging with other metal Little Elements.
Along with a small number of Copper-tchi and Magnesium-tchi, he makes an alloy called duralumin and they are active in a trunk and an airplane.
Since it exists in large quantities on the earth, he is traded at a relatively cheap price.
According
to the proportion of other metal elements, alloys based on him are
classified by numbers of 1000 to 8000, each having various properties,
and it is useful in suitable applications.
Especially the 2000 series is called duralumin as mentioned above and the 7000 series is called ultra super duralumin.This 7000 series is the metal used for the main wing of zero fighter.
He is highly
corrosion-resistant, because when he is playing with Oxygen-tchi, an oxide film
barrier is formed and he will not play with other Little Elements.
After all, his most familiar use would be aluminum foil which is also his own figure.
He has guts regardless of his appearance, so he does not surrender even under strong pressure.
Even if he is alloyed with other metal Little Elements, it is relatively easy to take him out alone.
Other Group 13 elements(Link is not still available)
Room No.5 Boron-tchi
Room No.31 Gallium-tchi
Room No.49 Indium-tchi
Room No.81 Thallium-tchi