Cambridge IGCSE Chemistry · Syllabus 0620 · Electrochemistry
Ionic half-equation
What is Ionic half-equation?
An equation showing the change at one electrode only, written with the electrons transferred included as \(e^-\). Electrons appear on the left when a species gains them and is reduced, and on the right when a species loses them and is oxidised; a correct half-equation balances both the atoms of each element and the total electrical charge on the two sides.
This definition is part of the Electrochemistry chapter in Cambridge IGCSE Chemistry.