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Topic: Why wouldn’t this reaction be expected to occur?  (Read 1098 times)

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Offline Roddy3

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Why wouldn’t this reaction be expected to occur?
« on: October 28, 2019, 05:26:26 PM »
PF_5 +F_2=PF_7

I’m pretty sure it has something to do with oxidation numbers, but I’m not exactly sure why.
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Offline AWK

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Re: Why wouldn’t this reaction be expected to occur?
« Reply #1 on: October 28, 2019, 05:36:58 PM »
How many valence electrons have phosphorus?

Compounds with coordinate number 7 are very rare and only very large atoms form them.
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Offline Roddy3

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Re: Why wouldn’t this reaction be expected to occur?
« Reply #2 on: October 28, 2019, 05:55:20 PM »
So, if the valence electron number was 7, then the reaction could happen?
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Offline AWK

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Re: Why wouldn’t this reaction be expected to occur?
« Reply #3 on: October 28, 2019, 06:02:11 PM »
Iodine heptafluoride is known.
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