Although I3- is a known ion, F3- is not. (c) Another classmate sa...

Question

Although I3- is a known ion, F3- is not. (c) Another classmate says F3- does not exist because it would violate the octet rule.
Is this classmate possibly correct?

Accepted Answer

Hello. Everyone in this video. We're going to go ahead and evaluate these three oxygen species and trying to see if they violate the octet rule. So for eight we have hydroxide. Hydroxide is a very known um ion and the O H ion is going to be something that is definitely going to follow the octet rule. All right now the hydroxyl oh H with this little dot here, that's going to be a radical and all radicals do not obey the octet rule. And here we do have what looks to be an ion. However, there's a little dot again and that indicates that we have an ionic radical and like a radical. This also does not obey the octet rule. So based on these evaluations here, it means the only one that obeys the octet rule is going to be a our ion. I'm going to highlight this answer and a is going to be the final answer for our problem because it's the only one that will obey the octet rule.

Although I3- is a known ion, F3- is not. (c) Another classmate says F3- does not exist because it would violate the octet rule. Is this classmate possibly correct?

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