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Davy had his first success with potassium using this approach on October 6, 1807.
A few days later he repeated his experiment with soda ash and produced pure sodium metal.
The alkali metals are the elements that make up Group 1 (IA) of the periodic table.
The periodic table is a chart that shows how chemical elements are related to one another.
Early humans were familiar with potash, a potassium compound that forms when wood burns. That name comes from the origin of the material ("vegetable" plants that contain wood) and the most important property of the material, alkali.
In that instance, the potassium would skip along the surface of the water.He was amazed to see a tiny liquid droplet of metal formed in each case.The droplet was the first piece of potassium and sodium ever to be seen by a human.The alkali metals also include lithium, sodium, rubidium, cesium, and francium. Potassium is so active that it never occurs free in nature.It always occurs in compounds, combined with other elements.
By the late 1700s, chemists were reasonably sure that both potash and soda ash contained elements they had never seen.