Deviations to the Electron Affinity Trend Occur Because of:
For a particular energy level removing an electron from the s subshell would require a higher first ionization energy. Since a half-filled p subshell is more stable carbon has a greater affinity for an electron than nitrogen. 3 4 Trends In Electron Affinity And Metallic Character Chemistry Libretexts Electron configuration and orbital diagrams are helpful tools to help determine the primary effects involved in the trends as well as deviations from the trend. . Minor deviations from this trend can be explained in terms of particularly stable electronic configurations called pseudo noble gas configurations in either the parent atom or the resulting ion. Most exceptions to the trend of decreasing radius moving to the right within a period occur in the Select the correct answer below. For beryllium the first ionization potential electron comes from the 2s orbital although ionization of boron involves a 2p electron. The overall...