Inner Core Electrons (IMAGE) Yokohama National University Caption Inner core electrons are expected to have a peanut like wavefunction as is shown for Si2s electrons (right). In the C-C bond, however, the C1s electrons form a torus like feature of opposite polarity, shown in pink in left figure. Credit Yokohama National University Usage Restrictions None License Licensed 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.