00:01
So in this video, we're going to work through question 140 from chapter 8, which says, although both br3 minus and i3 minus ions are known, the f3 minus ion has not been observed.
00:12
Explain.
00:13
So let's try drawing a generic lewish structure for x3 minus, where x is just one of our halogens.
00:21
It could be bromine, it could be ironine, it could be fluorine, but we want to know what this lewis structure looks like.
00:27
So how many electrons do we have to work with? while our halogens always bring seven valence electrons.
00:33
I have three of them, that's 21.
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I have an overall minus one charge, so that's one extra.
00:38
I have 22 electrons.
00:41
So let's draw our central atom x, bonded to another x, bonded to another x...
