Whoa! What a messy method of notation. And you may be shocked to learn that many chemists aren’t very, shall we say, artistically oriented. Or patient, for that matter. We need a notation that tells us more than our empirical equation, but isn’t so cluttered and tiresome as figure 4. Such a notation exists—it’s called the Lewis Structure, a simplification of the Bohr model that makes use of the octet rule.