The cation is sodium ion and the anion is the complex ion. The ligands present are ammine, bromo, chloro, and nitro\(-N\). Here \(N\) represents that the nitro group coordinates through the \(N\) atom. The names of the ligands are written in the alphabetical order. The oxidation state of platinum is \(+2\). The oxidation state is written in Roman numerals inside the parenthesis.