15 oct. 1807 - Potassium

Description:

-Metallic potassium was first isolated by Sir Humphry Davy in 1807 through the electrolysis of molten caustic potash. Potash is some of various mined and manufactured salts that contain potassium in water-soluble form

-Discovered during the contemporary history modern (metal age). It describes the historical period from approximately 1945 to the present.

-Potassium is a mineral that plays many important roles in the body. Food sources of potassium include fruits (especially dried fruits), cereals, beans, milk, and vegetables

The extraction of potassium uses electrocardiographic abnormalities which is also a type of Electrolysis.