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### carbon monoxide formal charges

Posted: Sun Nov 10, 2019 11:43 pm
Why does carbon monoxide have a +1 charge on the oxygen and a -1 charge on the carbon?

### Re: carbon monoxide formal charges

Posted: Sun Nov 10, 2019 11:46 pm
Because that is the only way to attain a neutral structure with an overall charge of 0.

### Re: carbon monoxide formal charges

Posted: Sun Nov 10, 2019 11:48 pm
A triple bond between the C and O gives them both a full octet with the 10 available electrons. Because each has a lone pair, you end up with a positive and negative charge. This, however, cancels out. Any other configuration would get you a formal charge even further away from 0.

### Re: carbon monoxide formal charges

Posted: Mon Nov 25, 2019 3:57 am
Simple formal charge calculations. The carbon atom, for example, has 4 valence electrons, but if you take the electrons in a CO molecule (2 lone electrons and 3 bonded electron pairs) you will get 4 - 5 = -1 formal charge.

### Re: carbon monoxide formal charges

Posted: Mon Nov 25, 2019 7:31 am
This is due to the lewis structure as carbon monoxide requires a triple bond to fulfill the 10 valence electrons needed in the structure. Furthermore when conducting formal charge, carbon would have a +1 charge while oxygen would have a -1 charge.