Sodium and potassium

New elemental metals, sodium and potassium, were isolated using electrolysis, a process that uses an electric current to decompose substances. This breakthrough enabled the isolation of several alkali metals, which had a significant impact on the development of the field of electrochemistry.
 Humphry Davy England 1807 Sodium and potassium

New elemental metals, sodium and potassium, were isolated using electrolysis, a process that uses an electric current to decompose substances. This breakthrough enabled the isolation of several alkali metals, which had a significant impact on the development of the field of electrochemistry.