The average person uses sodium every day in the form of table salt in their food. Table salt is needed for animals to survive, but most people use it for adding flavor to their food.
Another popular use of sodium is in baking soda.Baking soda is used as a leavening agent in cooking foods like pancakes, cakes, and breads.
A lot of soaps are forms of sodium salts.
Other applications include de-icing, medicine, organic chemistry, street lights, and cooling nuclear reactors.
Potassium;
The largest use of potassium is potassium chloride (KCl) which is used to make fertilizers.
potassium is important for plant growth.
Industrial applications for potassium include soaps, detergents, gold mining, dyes, glass production, gunpowder, and batteries.
Potassium also plays a vital role in our bodies. It is used in muscle contraction.