σ bonds


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Adrienne B 1J
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Joined: Sat Feb 24, 2018 3:00 am

σ bonds

Postby Adrienne B 1J » Thu May 31, 2018 10:12 am

What is a sigma bond?

breannasung_1K
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Joined: Fri Apr 06, 2018 11:05 am

Re: σ bonds

Postby breannasung_1K » Thu May 31, 2018 10:26 am

sigma bonds occur when there is an overlap between atomic orbitals. 1 single covalent bond is a sigma bond.

Neha Divi 1K
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Re: σ bonds

Postby Neha Divi 1K » Thu May 31, 2018 12:30 pm

To add on, a sigma bond is a covalent bond resulting from the formation of a molecular orbital by the end-to-end overlap of atomic orbitals. These overlaps can occur between s-s, p-p, s-p

Adilene Gonzalez 1J
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Re: σ bonds

Postby Adilene Gonzalez 1J » Thu May 31, 2018 7:47 pm

How many sigma and pi bonds are in a single, double, and triple bond?

Caitlyn Ponce 1L
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Re: σ bonds

Postby Caitlyn Ponce 1L » Fri Jun 01, 2018 3:52 pm

Single bond: one sigma bond
Double bond: one sigma and one pi bond
Triple bond: one sigma and two pi bonds

Hope_Pham_1G
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Re: σ bonds

Postby Hope_Pham_1G » Sat Jun 02, 2018 1:58 pm

How come double bonds and triple bonds have pi bonds?

Erin Li 1K
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Joined: Fri Apr 06, 2018 11:03 am

Re: σ bonds

Postby Erin Li 1K » Sat Jun 02, 2018 8:45 pm

a sigma bond is when there is one single covalent bond
however, double bonds and triple bonds also have a sigma bond

Emma Leshan 1B
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Re: σ bonds

Postby Emma Leshan 1B » Sun Jun 03, 2018 12:46 pm

Remember how the p-orbitals are oriented: one along the x-axis, one along the y-axis, and one along the z-axis. Because of this orientation, only one of the bonds can overlap the orbitals and be a sigma bond. The other orbitals are side-by-side and therefore form pi bonds.
<img src="https://d2gne97vdumgn3.cloudfront.net/api/file/LXEHOhIQQzW0hNEnf9mk" alt="Image result for triple bond orbitals"/>

Samantha Draghi 1L
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Joined: Fri Apr 06, 2018 11:02 am

Re: σ bonds

Postby Samantha Draghi 1L » Sun Jun 03, 2018 2:24 pm

sign bonds allow atoms to rotate while pi bonds do not. This is because the end-to-end overlap of the atomic orbitals, while in pi bonds there is a side-by-side orientation

Ziana Bhanji 1E
Posts: 30
Joined: Fri Apr 06, 2018 11:01 am

Re: σ bonds

Postby Ziana Bhanji 1E » Sun Jun 03, 2018 2:47 pm

Also remember that a sigma bond is the strongest type of covalent chemical bond.


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