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Number of Sigma and Pi Bonds

Posted: Fri Nov 30, 2018 10:15 pm
by Nathan Mariano 2G
Why does only one sigma bond form between two atoms? Why can multiple pi bonds form between two atoms?

Re: Number of Sigma and Pi Bonds

Posted: Sat Dec 01, 2018 10:56 am
by Tarika Gujral 1K
Sigma bonds refer to overlap of s orbitals: since there is only one s orbital, there can only be one sigma bond. Pi bonds, on the other hand, refer to overlap of p orbitals. Since there are multiple p orbitals, multiple pi bonds can form.

Re: Number of Sigma and Pi Bonds

Posted: Sat Dec 01, 2018 12:14 pm
by Andrew Lam 3B
pi bonds form between p orbitals -- there are 3 of them per atom

Re: Number of Sigma and Pi Bonds

Posted: Sat Dec 01, 2018 1:48 pm
by Daniel Chang 3I
It's due to the number of orbitals. S orbitals have one orbital while P orbitals have three

Re: Number of Sigma and Pi Bonds

Posted: Sat Dec 01, 2018 5:34 pm
by chrisavalos-2L
This is because a sigma bond is the overlapping of the s orbital and since there is only one there can only be one sigma bond. Also, there can be multiple pi bonds because it occurs between p orbitals, and there are three therefore there can be multiple pi bonds

Re: Number of Sigma and Pi Bonds

Posted: Sun Dec 02, 2018 11:54 am
by Esther Lee 4H
you can have multiple pi bonds because there are 3 p orbitals

Re: Number of Sigma and Pi Bonds

Posted: Mon Dec 03, 2018 1:21 am
by Sang Hyoun Hong 3G
You can have more than 1 pi bond because they are made up of the interaction between p orbitals. Because some elements can have the Px Py and Pz orbitals, they can make 3 pi bonds while only one S orbital is available, thus making it so that there can only be one sigma bond.