Lewis Electron Dot Structure For H2o. Remember that hydrogen only needs two electrons to have a full outer shell. The lewis dot structure for water shows the electron from hydrogen and an electron from oxygen being shared in a covalent bond.
On the right and left sides are a singly bonded h atom. And oxygen is in group 6 sometimes called 16 so it has 6 valence electrons. While oxygen s octet seems to have been filled hydrogen only has two electrons for its valence shell.
2 plus 6 equals 8.
There is an atom of oxygen in the center and two atoms of hydrogen around the central atom. Look for the total valence electrons. The lewis dot structure of water begins with a single o atom in the center. The lewis structure of hydrogen and 2 oxygen atoms shows a total of eight valence electrons participate in the bond formation to form a single triatomic h2o molecule.
