Most stable lewis

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Diego Gonzalez 3F
Posts: 32
Joined: Fri Sep 28, 2018 12:26 am

Most stable lewis

Postby Diego Gonzalez 3F » Wed Oct 31, 2018 7:35 pm

How do we know which resonance structure is the most stable? Can you do it by just looking at the lewis structures?

Lorena Zhang 4E
Posts: 63
Joined: Fri Sep 28, 2018 12:16 am

Re: Most stable lewis

Postby Lorena Zhang 4E » Wed Oct 31, 2018 8:04 pm

In order to know the most stable lewis structure, you should calculate the formal charge. The most stable lewis structure has the least formal charge on each atom.

Millicent Navarro 1I
Posts: 61
Joined: Fri Sep 28, 2018 12:25 am

Re: Most stable lewis

Postby Millicent Navarro 1I » Thu Nov 01, 2018 3:45 pm

The most stable Lewis structure is determined by finding a structure that has the least formal charge on each atom. In order to find the formal charge of an atom, you use this formula: Formal Charge = [# of valence electrons on atom] – [non-bonded electrons + number of bonds]

705192887
Posts: 77
Joined: Fri Sep 28, 2018 12:18 am

Re: Most stable lewis

Postby 705192887 » Thu Nov 01, 2018 4:06 pm

Formal charge is used to determine the stability of a molecule. However, resonance structures, since they are different arrangements of the same bonds, are equally stable as one another.


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