Alumiinin
Alumiinin is not recognized as a chemical element in major chemical databases or standards. The term appears to be a misspelling or fictional variant of aluminium (British English) or aluminum (American English). No element named alumiinin exists in the current periodic table.
If the intended reference is to aluminium, it is a post-transition metal with the symbol Al and
Aluminium has multiple oxidation states but most common is +3. It is highly reactive with water at
Spelling differences: aluminium is the preferred spelling in most Commonwealth countries, aluminum in the United States.