LewisDotStructures(contd.):Twosharedpairsofelectrons=doublebond O-atom O-atom O2molecule Periodictable 1 2 Oxygenhassixvalenceelectrons 3 4 5 6 7 8 Theoctetrule Electronsaresharedinformingbondssuchthatatomshavethesamenumberofelectronsintheirvalenceshellsasthenearestnoblegas,includingtheelectronssharedwiththe...