Why I3 is linear?

(Polar molecules, Non-polar molecules, etc.)

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Xinye_Jiang_1A
Posts: 15
Joined: Sun Jun 25, 2017 2:00 am
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Why I3 is linear?

Postby Xinye_Jiang_1A » Sun Jul 30, 2017 7:27 pm

Since the central atom has lone pairs of e-. why it is said in book that I3 is linear?
p.s I know it is not in the final, still i want to know why

Timothy Kao 1B
Posts: 28
Joined: Fri Jun 23, 2017 10:39 am

Re: Why I3 is linear?

Postby Timothy Kao 1B » Sun Jul 30, 2017 7:52 pm

Specifically I3 or one of the I3 ions?

David Zhou 1L
Posts: 16
Joined: Fri Sep 29, 2017 6:04 am

Re: Why I3 is linear?

Postby David Zhou 1L » Fri Oct 27, 2017 10:31 pm

If it's I3-, it's because of the 3 lone pairs in the middle and 2 bonds, making it trigonal bipyramidal. The 3 lone pairs around the central I atom make it linear.


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