Most transition metal form more than one cation but aluminum forms the Al3+ cation only.
An alloy maybe could be used as a solid but i really don't think that would be it so i would sayether from an alloy or dirt
The reaction equation is:
Li + Br → LiBr
39 grams of Li = 39 / 7 = 5.57 moles of lithium
41.5 grams of Br = 41.5 / 80 = 0.52 mole of bromine
