Covalent bond

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Step 3: Add lone pairs so that each peripheral atom (except H) connected to the central atom gets an octet. Step 4: Place all remaining electrons on the central atom. Step 5: If the central atom does not yet have an octet after all the electrons have been assigned, take a lone pair from neighboring atom and form a multiple bond to the central atom. Prentice Hall © 2003 Chapter Five 20
5.7 Shape of Molecules Molecular shapes can be predicted by noting how many bonds and electron pairs surround individual atoms and applying what is called the valence-shell valence shell electron-pair electron pair repulsion (VSEPR) model. The basic idea of VSEPR model is that the negatively charged clouds of electron in bonds and lone pair repel each other therefore tends to keep apart as far as possible causing molecules to assume specific shape. Prentice Hall © 2003 Chapter Five 21
Page 1 and 2: Fundamentals of General, Organic &
Page 3 and 4: Water molecule results when two hyd
Page 5 and 6: A covalent bond between two hydroge
Page 7 and 8: Bond length: length: The optimum di
Page 9 and 10: When two chlorine atoms approach ea
Page 11 and 12: 5.2 Covalent Bonds and the Periodic
Page 13 and 14: 5.3 Multiple Covalent Bonds Single
Page 15 and 16: 5.4 Coordinate Covalent Bonds Coord
Page 17 and 18: Lewis structure: structure A molecu
Page 19: The following general method can be
Page 23 and 24: The shape depends on the number of
Page 25 and 26: Prentice Hall © 2003 Chapter Five
Page 27 and 28: Fig 5.7 Electronegativities and the
Page 29 and 30: Molecular polarity is represented b
Page 31 and 32: 5.10 Naming Binary Molecular Compou
Page 33 and 34: The following two steps guide is he
Page 35 and 36: If the intermolecular forces are so
Page 37 and 38: Chapter Summary Contd. Molecules h

Covalent bond

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