Creating Lewis structure.

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CenCen
Posts: 29
Joined: Fri Sep 25, 2015 3:00 am

Creating Lewis structure.

Postby CenCen » Mon Oct 26, 2015 2:07 pm

How can we distinguish whether we should use double bonds or add a pair of electrons when we start building our Lewis structure?

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Re: Creating Lewis structure.

Postby Chem_Mod » Tue Oct 27, 2015 2:33 am

You will use a double bond if you find that
1. you ran out of electrons while placing electrons, therefore you need to share some of them
2. you can get a better (lower) formal charge by making a double bond


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