So, if we look at this example question, it says predict a major charge of an ion if it were discovered to be in. Ten, group 3B. All right. So something that might jump out at you when you look at this question is the fact that we're talking about a period ten element. But we know that when we look at a periodic table, there's only 7 rows. So our periodic tables only go up to. 7. So where is this. 10 coming from?

Well, remember I discussed earlier that the periodic table is dynamic. It changes over time because we are either going to discover new elements or create new elements. The number of roles will overtime increase. So there is a chance that we will create an element or maybe there's an element that already exists that is located in. 10. But that's not the important part of this question. The important part is the group that it's in. It's in Group 3B.

So remember we talked about this up above group 3B. This contains the element scandium and it has a charge of 3+. And we said that there's something special about that group 3B. The other metals in that group would also possess a charge of 3+, so here that would mean that option E would be my correct choice. So remember a lot of the transition metals have multiple charges, but there are some patterns that we can observe when looking at different transition metals, one of them being elements from group 3B having a charge of 3+.