Sigma Bonds

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Amy Xiao 1I
Posts: 101
Joined: Sat Jul 20, 2019 12:15 am

Sigma Bonds

Postby Amy Xiao 1I » Mon Nov 18, 2019 10:39 pm

Is it possible for a central atom to have multiple sigma bonds, each connected to a different atom? Or does the one sigma bond rule hold true for the entire atom?

Jamie Lee 1F
Posts: 106
Joined: Fri Aug 09, 2019 12:16 am

Re: Sigma Bonds

Postby Jamie Lee 1F » Mon Nov 18, 2019 10:50 pm

Each single bond a central atom has attaches to it is a sigma bond, every additional bond added to the initial single bond (double or triple bond) is a pi bond. So in the case of SF6, S has 6 single bonded F's, so it has 6 sigma bonds and no pi bonds. NO3- on the other hand has 2 single bonds and 1 double bond, so it has 3 sigma bonds and 1 pi bond.

Abby Soriano 1J
Posts: 103
Joined: Sat Aug 24, 2019 12:16 am

Re: Sigma Bonds

Postby Abby Soriano 1J » Mon Nov 18, 2019 10:51 pm

A central atom can have multiple sigma bonds as long as they are all single bonds connecting the central atom to different atoms. Any double or triple bonds that are added in addition to those single bonds become pi bonds.

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