Radicals

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Siwa Hwang 3G
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Joined: Wed Sep 30, 2020 9:48 pm

Radicals

Postby Siwa Hwang 3G » Wed Nov 04, 2020 11:59 pm

Can somebody explain what radicals are? I don’t really understand how the radicals apply to the octet guideline.

Thank you!
Last edited by Siwa Hwang 3G on Thu Nov 05, 2020 5:31 pm, edited 1 time in total.

Kayla Law 2D
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Re: Radicals

Postby Kayla Law 2D » Thu Nov 05, 2020 12:02 am

A radical is a compound with an unpaired electron! Radicals are unstable and highly reactive, so they only exist for a short time. Radicals are an exception to the octet guideline because they don't have an octet. Since a radical is a compound with an unpaired electron, it will therefore not have a full octet since there is one electron not in a pair. Hope this helps!

Lindsey_Su_3A
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Re: Radicals

Postby Lindsey_Su_3A » Thu Nov 05, 2020 8:45 am

When will radicals show up? How do we know that a certain compound will have a radical?

Thomas Vu 1A
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Re: Radicals

Postby Thomas Vu 1A » Thu Nov 05, 2020 9:48 am

I think the only way to find out whether or not a compound is a radical is to draw out the Lewis structures and taking into account the total number of valence electrons. In radicals, the central atoms tend to have the unpaired electron, but regardless you should just draw out the structure to make sure.

Emma Ide 2E
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Re: Radicals

Postby Emma Ide 2E » Thu Nov 05, 2020 10:15 am

You can determine if something is a radical by drawing out the Lewis structure and looking for an unpaired electron. Radicals are very unstable and usually result from a more stable molecule's bond being broken, and each half of the newly made molecules taking one electron from the previous bond.

Sandy Lin 1L
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Re: Radicals

Postby Sandy Lin 1L » Thu Nov 05, 2020 11:26 am

Radicals are compounds that have electrons with unpaired spins, and it is an exception to the octet guideline. Because of this unpaired electron, the compound becomes highly reactive and unstable. When you draw the lewis structure, and there is an odd number of electrons, one of the electrons will remain unpaired. It will just be represented by a dot.

Siwa Hwang 3G
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Joined: Wed Sep 30, 2020 9:48 pm

Re: Radicals

Postby Siwa Hwang 3G » Thu Nov 05, 2020 5:31 pm

okay this makes a lot more sense now. Thank you everyone!

MinjooPark_3I
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Re: Radicals

Postby MinjooPark_3I » Thu Nov 05, 2020 10:20 pm

Sandy Lin 1A wrote:Radicals are compounds that have electrons with unpaired spins, and it is an exception to the octet guideline. Because of this unpaired electron, the compound becomes highly reactive and unstable. When you draw the lewis structure, and there is an odd number of electrons, one of the electrons will remain unpaired. It will just be represented by a dot.


Do we leave the central element with an unpaired electron or would we need to draw out the extra element sharing its electron? Or can it be represented both ways?

Sandy Lin 1L
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Joined: Wed Sep 30, 2020 9:48 pm

Re: Radicals

Postby Sandy Lin 1L » Sun Nov 08, 2020 8:12 am

MinjooPark_3F wrote:
Sandy Lin 1A wrote:Radicals are compounds that have electrons with unpaired spins, and it is an exception to the octet guideline. Because of this unpaired electron, the compound becomes highly reactive and unstable. When you draw the lewis structure, and there is an odd number of electrons, one of the electrons will remain unpaired. It will just be represented by a dot.


Do we leave the central element with an unpaired electron or would we need to draw out the extra element sharing its electron? Or can it be represented both ways?

You're not allowed to add extra elements that are not present in the original molecule, so you would just leave the unpaired electron. That's what makes it a radical.

Madison Muggeo 3H
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Joined: Wed Sep 30, 2020 9:35 pm

Re: Radicals

Postby Madison Muggeo 3H » Sun Nov 08, 2020 6:58 pm

I had a similar question, so thank you to all that responded!


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