What salt should be formed by the interaction of aluminum metal and iodine?
This is a poor question. They ask you to predict a formula of
On the other hand, iodine is a Group 17 non-metal. It is commonly reduced to give the iodide anion:
When aluminum and iodine make music together, i.e. combine in a redox reaction, 3 equiv of electrons of electrons are transfered:
We know that most matter is electrically neutral, and all I have done here is to draft enough iodide ions, formally anionic, to neutralize the charge of the