00:02
Hi there.
00:03
In this question, we have a table to complete for a couple of polyatomic ions.
00:09
And honestly, really, the only way to know these, there is not a good way to know them beyond sadly memorizing them.
00:21
Okay, so for example, the first one, the sulfide anion.
00:27
We do know since it's i -te, that tells us that it has one less oxygen than the a -te.
00:33
So that helps a little bit if we know what sulfate is.
00:36
We could figure out what sulfite is, but sulfite is going to be s -o -3 with a two -negative charge.
00:47
All right, so that would be the formula for the sulfite anion.
00:55
Then we need to name the i -o -negative.
01:01
Well, i -o -2 negative is going to be the iodite ion, as weird as that sounds...