The Lewis model predicts that the formula of a compound formed between bromine and aluminum is: The Lewis model predicts that the formula of a compound formed between bromine and aluminum is: AlBr2 AlBr3 AlBr Al2Br none of the above

AlBr3

Explanation:

Aluminum has three electrons on its valence shell. The Lewis model deals with combination of electrons on the valence shells of atoms to form compounds. Bromine has seven electrons on the valence shell of each bromine atom.

Three bromine atoms could combine with one aluminium atom to form aluminium bromide in which each bromine atom now has eight electrons in their valence shells according to the octet rule. Aluminium however will only have six electrons on its valence shell.