Notes-(01)
6. Number of σ bond(s) and π bond(s)
6.3. Sigma (σ) bond and Pi (π) bond | Ethene
Sigma(σ) bond | (a): Five σ bonds o One C–C bond: Overlap of sp2 hybrid orbitals on the carbon atom with one sp2 hybrid orbital on the other carbon atom o Four C–H bonds: Overlap between the C atoms’ sp2 orbitals with s orbitals on the hydrogen atoms |
Pi(π) bond | (b): One π bond o Formed by the side-by-side overlap of unhybridized p orbitals on each carbon atom o Two lobes of the π bond are above and below the plane of the σ system |