Chapter 5 - Electron Configurations and the Periodic Table - Questions for Review and Thought - Applying Concepts - Page 240f: 126c

Not possible.

For this problem, we are asked to determine whether the electrons are in the ground or the excited state. To do this, we look at their configurations and see if they represent the way that we would normally add electrons to shells. 8 p electrons are not possible, so this is not a possible configuration.