How to tell if a molecule has π bonds or σ bonds? and PJ Bond @ Fest 11 10.27.12-37

How to tell if a molecule has π bonds or σ bonds?

Is there any telltale way to find out just from look at the molecule structure?
For example, I know that C double bond C has both pi and sigma bonds, but how would I know that by just looking at that structure?


Bond best answer:

Answer by Billy B
Yes!

Single bond: 1 σ bond
Double bond: 1 σ bond and 1 π bond
Triple bond: 1 σ bond and 2 π bonds

The information above is true for covalent bonds.

Bond

PJ Bond @ Fest 11 10.27.12-37


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PJ Bond plays Fest 11 at Civic Media Center, Gainesville, FL, October 27, 2012.

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