00:04
Okay, so here we want to know why we call barium nitrate, barium nitrate, but we call f -e -n -o -3 -2, iron -2 nitrate.
00:15
So the reason why this is, if we look at the formulas, what's changing here is the barium versus the iron here.
00:25
And so there's nothing different really about these atoms in the way they're notated, but we think about the atoms themselves.
00:30
Beryum is an alkali -alcoline earth metal, and iron is a transition metal.
00:35
And one thing that's important to know about transition metals like iron is that they can have multiple charges, such as plus two, plus three, and so on.
00:47
Some items can have four charges, three charges.
00:51
And so it's important to note which transition metal charge in particular that you're talking about, because they all have different charges, and each one has unique properties...