How many sigma-"bonds"σ−bonds and pi-"bonds"π−bonds in ethylene?

1 Answer
anor277
Apr 24, 2017

Well, there is the ONE pi-"bond"π−bond.

Explanation:

And I count 5xxsigma-"bonds"5×σ−bonds: 4xxC-H4×C−H, and 1xxC-C1×C−C. So that is 6 bonds in total. Note that 4xxH+2xxC4×H+2×C gives 12 valence electrons, and thus the appropriate number of electrons to constitute the six "2-centre, 2-electron"2-centre, 2-electron bonds.

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