Predict that a non-metal forms at the anode when a molten ionic compound is electrolysed.

During the electrolysis of molten ionic compounds, non-metals are produced at the anode. This occurs because the molten state allows ions to move freely, enabling the discharge of ions at the electrodes. At the anode, negative ions lose electrons, a process known as oxidation, resulting in the formation of non-metal elements. For example, when molten lead bromide is electrolysed, bromine gas is produced at the anode. This prediction is based on the understanding of ionic compounds and the behavior of ions during electrolysis.