Ytterbium-176 (IMAGE) DOE/Oak Ridge National Laboratory Caption Third-generation EMIS is optimized for separating elements at the heavier end of the periodic table, such as ytterbium. Credit ORNL/U.S. Dept. of Energy Usage Restrictions Use with credit 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.