hermes oran dhgate|Wholesale Cheap Oran Sandals & Hermes Oran Sandals 2.7: Electron Configurations. Page ID. Learning Objectives. Describe how electrons are arranged in an atom using electron configurations. Previously we discussed the concept of electron shells, subshells, orbitals, and electron spin. It is the arrangement of electrons into shells and subshells that most concerns us here, so we . Subscribe