What is the first step in writing the formula for a coordination compound?

In writing the formula for a coordination compound, the first step is to list the cation. The reason for this is due to the convention in naming ionic compounds, where the cation is typically placed first, followed by the anion. Coordination compounds consist of a central metal ion surrounded by ligands, and the metal ion (cation) holds a crucial role in defining the overall charge and connectivity of the compound.

Starting with the cation is important as it establishes the backbone of the coordination compound. After determining the cation, one can then proceed to identify the anions and ligands that are associated with it, ensuring that the overall charge balance of the compound is maintained. While other steps, such as listing the ligands or considering charges, are essential in the overall process of formulating the coordination compound, initiating with the cation is fundamental to establishing the proper structure and nomenclature.