Respuesta :
Answer: The correct answer is [tex]Al_2O_3[/tex]
Explanation:
Aluminium is the 13th element of the periodic table with electronic configuration of [tex]1s^22s^22p^63s^23p^1[/tex]
This element looses 3 electrons and shows an oxidation state of +3.
Oxygen is the 8th element of the periodic table with electronic configuration [tex]1s^22s^22p^4[/tex]
This element will gain 2 electrons and shows an oxidation state of -2.
By criss-cross method, the oxidation state of aluminium and oxygen gets revered and they form the coefficients of the compound.
Hence, the compound formed will have the chemical formula of [tex]Al_2O_3[/tex]
