Uses of elements of group 1 and group 2

Group 1: lithium metal is used in the long-life batteries found in digital watches, calculators and computers; liquid sodium is used as a heat-transfer medium in nuclear power stations; potassium chloride is used as a fertilizer; potassium is used to manufacture potassium superoxide (KO2), valued for oxygen generation and as a good absorbent of carbon dioxide; caesium is used in photoelectric cells. …