Figure 1 (IMAGE) Nagoya University Caption The distribution of outermost shell electrons, known as valence electrons, of organic molecules was observed for the first time. Credit Reiko Matsushita / photo provided by RIKEN Usage Restrictions Credit must be given where image is used License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.