Last Bullet of Outline 4

[Vivian Hoang 1H]

Hi! Reviewing the bullets of outline 4..

Please tell me everything you know for describing the structure of a molecule, cation, or anion in terms of hybrid orbitals and sigma and
pi bonds!

[Keerthana Sundar 1K]

Please tell me everything you know for describing the structure of a molecule, cation, or anion in terms of hybrid orbitals and sigma and
pi bonds!

- To describe the structure of a molecule, cation, or anion, you will need to know the amount of lone pairs on the central atom and the amount of bonds on the central atom. This will help you use the VSEPR theory to determine a shape.
- To determine the shape with a hybrid orbital, you will need to determine how many areas of electron density are there, and based on that chose the right hybrid orbital (ex. with 4 regions, you would do sp3, 5 regions sp3d, etc)
- Every bond is a sigma bond, unless it has double bonds, triple bonds, or more, in which case the first bond is a sigma bond and the second, third, etc bond is pi bond I believe (correct me if I'm wrong).

This is all I can think of at the moment, so if anyone has anything to add, feel free!

[Rohit Srinivas 2D]

Please tell me everything you know for describing the structure of a molecule, cation, or anion in terms of hybrid orbitals and sigma and
pi bonds!

- To describe the structure of a molecule, cation, or anion, you will need to know the amount of lone pairs on the central atom and the amount of bonds on the central atom. This will help you use the VSEPR theory to determine a shape.
- To determine the shape with a hybrid orbital, you will need to determine how many areas of electron density are there, and based on that chose the right hybrid orbital (ex. with 4 regions, you would do sp3, 5 regions sp3d, etc)
- Every bond is a sigma bond, unless it has double bonds, triple bonds, or more, in which case the first bond is a sigma bond and the second, third, etc bond is pi bond I believe (correct me if I'm wrong).

This is all I can think of at the moment, so if anyone has anything to add, feel free!

Additionally, the angles at which pi and sigma bonds are formed at could be useful. Pi bonds are perpendicular when they occur with the p shell. They also lock rotation while sigma bonds do not.

[Vivian Hoang 1H]

Please tell me everything you know for describing the structure of a molecule, cation, or anion in terms of hybrid orbitals and sigma and
pi bonds!

- To describe the structure of a molecule, cation, or anion, you will need to know the amount of lone pairs on the central atom and the amount of bonds on the central atom. This will help you use the VSEPR theory to determine a shape.
- To determine the shape with a hybrid orbital, you will need to determine how many areas of electron density are there, and based on that chose the right hybrid orbital (ex. with 4 regions, you would do sp3, 5 regions sp3d, etc)
- Every bond is a sigma bond, unless it has double bonds, triple bonds, or more, in which case the first bond is a sigma bond and the second, third, etc bond is pi bond I believe (correct me if I'm wrong).

This is all I can think of at the moment, so if anyone has anything to add, feel free!

Additionally, the angles at which pi and sigma bonds are formed at could be useful. Pi bonds are perpendicular when they occur with the p shell. They also lock rotation while sigma bonds do not.

Thanks for the replies! This is very helpful for studying for the final. Good luck!