Answer 1

Al and Al³⁺

The number of valence electrons in aluminium is 3.

The Lewis dot symbol of aluminium (Al) is .

The tripositive charge on a species infers that it has donated its three electrons. Hence, the Lewis dot symbol is 

Answer 2

`""_13Al` = 2,8,3 ∴ Lewis symbol = , `Al^(3+) "ions" = [Al]^(3+)`