Chapter 8 Lecture 8.5 Hybridization Section 8.3 Bonding Theories.

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Presentation transcript:

Chapter 8 Lecture 8.5 Hybridization Section 8.3 Bonding Theories

Molecular Orbitals an orbital formed by the overlap of atomic orbitals –B–Bonding orbital Can be occupied by two electrons in a covalent bond –S–Sigma Bond –P–Pi Bond

Sigma Bond σ Head-on overlap of two atomic orbitals Has axial symmetry

Sigma Bond σ Hydrogen, H 2

Sigma Bond σ Fluorine, F 2

Pi Bond π Side by side overlap of two orbitals

Ethene

Ethyne H - C = C - H

CH 4

Hybridizaton The combination of orbitals

sp 3

8.3 Hybrid Orbitals sp 2 – Hybridization Involving Double Bonds

sp 2 Ethene, C 2 H 4

Ethene

sp ethyne, C 2 H 2

8.3 Hybrid Orbitals – Hybridization Involving Triple Bonds

Ethyne H - C = C - H

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