The conversation between human and AI assistant.
How do you count sigma and pi bonds?
Is there any shortcut to count pi bonds without calculating sigma bonds first?
Yes, there is actually a shortcut. For molecules composed entirely of covalent bonds, you can determine the number of pi bonds by subtracting the total number of electron pairs in the bonds from the total number of electrons in the valence shell of the atoms. Then divide that number by two to get the number of pi bonds.