Why does aluminium has low reactivity in the reactivity series?

Answer 1

Aluminum is exactly as reactive as it is in the reactivity series. However, when aluminum reacts, with oxygen for instance, a thin layer of aluminum oxide builds up on the outside of the aluminum metal. This prevents more oxygen from reaching unreacted aluminum metal. This prevents the reaction from proceeding further, thus effectively protecting the aluminum metal from further reaction.

Answer 2

When aluminum is produced in a metallic form, it immediately reacts with the oxygen in the air, forming a monomolecular layer of aluminum oxide on its surface, and it is the aluminum oxide which is relatively non-reactive, and which prvents the metallic aluminum from undergoing further reactions. However, aluminum is actually more reactive than zinc, as long as it is allowed to react.

Answer 3

Aluminum is extremely reactive. It is so reactive that a thin film of aluminum oxide forms on the surface almost immediately. This aluminum oxide layer is very adherent and not very reactive. This explains why aluminum is very corrosion resistant and used in aircraft superstructures.

Answer 4

No. Aluminum is actually more reactive than iron. Aluminum will actually oxidize spontaneously on contact with air. This forms a microscopic layer of aluminum oxide (Al2O3) which is a very hard and chemically resistant substance. This layer protects the aluminum from further oxidation.

Answer 5

Because Aluminium is located on the second left side of the Periodic Table; it's an alkaline metal. That means it only needs to give away one electron to have a full outer shell, which is what atoms want in reactions. Lead is located closer to the middle, and doesn't react so easy.