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Chemistry Homework Help => AP Chemistry => Topic started by: ann on October 28, 2022, 09:19:56 PM

Title: Number of electrons in pi bonds
Post by: ann on October 28, 2022, 09:19:56 PM
this was on the quiz, I got it right but I want to make sure my reasoning is correct.
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Title: Re: how to tell number of lobes
Post by: chenbeier on October 29, 2022, 03:51:37 AM
The bond in ethyne is a triple bond. This is made of one sigma bond and 2 Pi bonds. Each Pi bond carries 2 electrons in sum its 4  the we have 2 p orbitales and these have 4 overlapings.

https://www.citycollegiate.com/ethyne_orbital.gif
Title: Re: Number of electrons, orbitals and lobes in pi bonds
Post by: uma on October 29, 2022, 06:21:57 AM
Quote from: ann on October 28, 2022, 09:19:56 PM
this was on the quiz, I got it right but I want to make sure my reasoning is correct.
A Triple bond means 2 pi bonds .
A pi bond is formed by lateral or sideways  overlapping of p orbitals. It means two p orbitals of each carbon will overlap with two p  orbitals of other carbon which will make 4 lobes ...two above the plane and two below the plane. Please check image for better understanding.
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