Write the electron configuration for each ion. c. Sr²⁺ d. Co³⁺ e. Cu²⁺

Electron configuration describes the distribution of electrons in an atom's orbitals. It is represented using a notation that indicates the energy levels and sublevels occupied by electrons. Understanding electron configuration is essential for predicting an element's chemical behavior and reactivity.

Ionic charge refers to the net charge of an ion, which results from the loss or gain of electrons. For cations, such as Sr²⁺, Co³⁺, and Cu²⁺, electrons are lost, leading to a positive charge. The number of electrons lost is crucial for determining the correct electron configuration of the ion.

Transition metals often exhibit unique electron configurations due to their partially filled d orbitals. The electron configuration of transition metal ions can differ from their neutral atoms, as they may lose electrons from both the s and d orbitals. This is particularly relevant for ions like Co³⁺ and Cu²⁺, where understanding the specific electron loss is key to writing their configurations.