Chemistry160-page8 - include the other atom(more or less...

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Chemistry Concepts - 8 Covalent Bonds The major elements found in living organisms, carbon, hydrogen, oxygen, and nitrogen, tend to form covalent bonds. Our carbohydrates, proteins, lipids and genetic molecules are formed from these elements, as are the vitamins needed for living organisms. The exception to covalent bonding in the compounds found in living organisms are the minerals, or salts, which form ionic bonds. Covalent Bond Characteristics A covalent bond is formed when different atoms share one or more of their electrons with each other. This sharing causes each atom's orbitals to expand and alter its pattern to
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Unformatted text preview: include the other atom (more or less). This determines the shape (bonding angles) of the molecule which forms. • This collectively results in more stable orbitals for both atoms • Covalent bonds form generally when a transfer of electrons would result in too great of a charge imbalance between the atom's positively charged nucleus and it's negatively charged electron field. • Depending on the total number of electrons an atom has to share, an atom may covalently bond with one, or with several other atoms. Variations in covalent bonds Single covalent bond: The 2 atoms are sharing 1 electron pair...
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This note was uploaded on 12/29/2011 for the course BIO 151 taught by Professor Edwards during the Spring '10 term at SUNY Stony Brook.

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