Carbon has four valence electrons, and oxygen has six valence electrons. if carbon and oxygen bond covalently, which of the following is the correct lewis dot (electron dot) structure for carbon dioxide? carbon has four valence electrons, and oxygen has six valence electrons. if carbon and oxygen bond covalently, which of the following is the correct lewis dot (electron dot) structure for carbon dioxide? a lewis dot structure with the following configuration: one oxygen atom with four valence electrons, a double bond to a carbon atom, followed by a double bond to a second oxygen atom which has four valence electrons. a lewis dot structure with the following configuration: one oxygen atom with four valence electrons, a single bond to a carbon atom with four valence electrons, followed by a single bond to a second oxygen atom which has four valence electrons. a lewis dot structure with the following configuration: one oxygen atom with six valence electrons, a single bond to a carbon atom, followed by a single bond to a second oxygen atom which has six valence electrons.