Calculating Formal Charge


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Rain Taganas 1J
Posts: 22
Joined: Fri Sep 29, 2017 7:05 am

Calculating Formal Charge

Postby Rain Taganas 1J » Sun Nov 12, 2017 4:16 pm

Is there a faster way of calculating formal charge other than the equation V-(L+(s/2))?

Christian Fulinara 3H
Posts: 20
Joined: Thu Jul 13, 2017 3:00 am
Been upvoted: 1 time

Re: Calculating Formal Charge

Postby Christian Fulinara 3H » Sun Nov 12, 2017 4:18 pm

To simplify the equation, it is easier to subtract the number of electrons(dots) and the number of bonds(lines) from the number of valence electrons, per element.

Derek Waters 1A
Posts: 16
Joined: Thu Jul 13, 2017 3:00 am

Re: Calculating Formal Charge

Postby Derek Waters 1A » Sun Nov 12, 2017 7:19 pm

Yeah you can think of the s/2 as just the bond lines to make it simpler

Jonathan Tangonan 1E
Posts: 50
Joined: Sat Jul 22, 2017 3:01 am

Re: Calculating Formal Charge

Postby Jonathan Tangonan 1E » Sun Nov 12, 2017 8:08 pm

Yes so each bond line that you see would count as one electron and each lone pair would have two electrons and you would just subtract that from the usual amount of valence electrons that surround the atom.

aaron tang 2K
Posts: 49
Joined: Thu Jul 27, 2017 3:01 am

Re: Calculating Formal Charge

Postby aaron tang 2K » Tue Nov 14, 2017 5:49 pm

Subtract the valence electrons of an elements by the bonds and electrons that are around it. Bonds are represented as 1 electron.


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