Sir Humphry Davy, 1st Baronet (December 17, 1778 - May 29, 1829) was a Cornish chemist and inventor, best remembered today for isolating, using electricity, a series of elements for the first time: potassium and sodium in 1807 and calcium, strontium, barium, magnesium and boron the following year, as well as discovering the elemental nature of chlorine and iodine. He also studied the forces involved in these separations, inventing the new field of electrochemistry.

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Humphry Davy, English Chemist and Inventor

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