How do metals form cations?
You don't happen to be in Mrs. Floras's class, do you?
haha trying to do the assignment later minute too?
By giving up one or more Electrons(s) to become Positively Charged. (More Protons than Electrons).
Sodium has a Valence of 1. It can lose 1 electron to become the Cation of Sodium as Na(1+). having 11 Protons and 10 electrons.
Magnesium have a Valence of 2. It can lose 2 Electrons to become the Cation of Magnesium (Mg(2+). having 12 Protons and 10 Electrons.
(A Cation is a positive Ion that will be attracted to a negative Cathode or to a refusal Anion like Chlorine. Cl(1-).