In the Lewis structure, the central oxygen atom is bonded to two carbon atoms, which have little or no electronegativity. The six remaining hydrogen atoms in the molecule are evenly distributed among the carbon atoms.
To draw the Lewis structure, form chemical bonds by assigning 2 valence electrons between each element pair. This uses 16 of the 20 available valence electrons, as each carbon atom is connected to one oxygen atom and three hydrogen atoms. The remaining 4 valence electrons connect to the two remaining sides of the oxygen atom.Learn more about Atoms & Molecules