Part A. How many σ and π bonds are present in a molecule of cumulene?
Enter the number of σ bonds followed by the number of π bonds separated by a comma.
When two atoms form a single covalent bond, two orbitals (one from each atom) overlap such that the electron pair can be in both orbitals simultaneously. Double and triple bonds involve the sharing of multiple electron pairs. Each additional electron pair requires the overlap of another set of orbitals. A set of overlapping orbitals is called a σ bond (sigma bond) if the overlap is head- on and a π bond (pi bond) if the overlap is sideways.
Frequently Asked Questions
What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Orbital Overlap concept. If you need more Orbital Overlap practice, you can also practice Orbital Overlap practice problems.