Humphry Davy using electrical decomposition to

Illustration showing Humphry Davy using electrical decomposition to discover potassium and sodium (1807-8). Sir Humphry Davy (1778 - 1829), British chemist and inventor, best remembered 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

1778 1807 1808 1829 Barium Boron Calcium Chlorine Davy Decomposition Discover Discovering Elemental Elements Humphry Iodine Isolating Magnesium Potassium Remembered Sodium

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