Last but not least, polyatomic ions generally sort which can be covalently bonded atoms where the overall number of protons isn't equal to the total number of electrons. One route involves melting cyanuric acid or urea with potassium hydroxide. This offers potassium cyanate. Crush the ensuing good and grind it. https://devingeyof.azzablog.com/30493756/about-is-potassium-cyanide-poisonous