Asked by Johannie

What is the purpose in calculating formal charges?

What physical forces create the three dimensional structure of a molecule?
Answered by DrBob222
What do you have in mind?
Answered by Johannie
im just really confused on this topic, we havent gone over it in class yet and so i don't know much on it.
for the first question i really don't know,
but the second one im guessing that the opposite charges maybe?
Answered by Johannie
for the first question, to be able to draw lewis structures correctly?
Answered by Johannie
Formal charges are used as a bookkeeping to determine which resonance structure contribute the most to a molecules electron configuration. The resonance is sort of a measure of the stability.

Is this correct?
Answered by DrBob222
Right, formal charges are a bookkeeping method. They are used (adjacent charge rule, etc) to help determine which Lewis electron dot structures are more likely than others.

For the second part, the amount of charge, bonding, and size, to name three.
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