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Lec-13-Chap-08-1 - Lecture 13 Knowledge and Skills Lecture...

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1 Lecture 13 Covalent Bonding Covalent Bonding 8.1 Single Bonds and Lewis Structures 8.2 Single Covalent Bonds in Hydrocarbons 8.3 Multiple Covalent Bonds 8.4 Lecture 13, Knowledge and Skills • Understand the concept of the covalent bond • Draw Lewis structures of molecules with single and multiple bonds • Hydrocarbons and other molecules with single bonds • Functional groups in organic compounds Covalent Bonding sharing of electrons between atoms H . + H . ± H:H Atomic Interactions Lewis recognized that atoms share electrons when they form bonds with each other. . H H H H Each of the hydrogen atoms can claim to possess an electron pair, to have a filled valence shell! Each of the hydrogen atoms can claim to possess an electron pair, to have a filled valence shell! Octet Rule In chemical bond formation an atom gains or loses electrons, or shares pairs of electrons, until its valence shell has eight electrons. This rule holds for most main group elements. For hydrogen the number of electrons is two.
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