Genuine spare part for select models of Hoover fridge freezers. Faulty products will replaced upon receipt of the faulty item unless authorized by us.
Strontium was recognized as a new element in 1790 when Adair Crawford analyzed a mineral sample from a lead mine near Strontian, Scotland. Until then scientists had thought strontium and barium were the same element, and only bariumâs existence had been recognized. The mineral took its name from the Scottish town and was called strontianite (strontium carbonate).
Sodium was discovered by Sir Humphrey Davy in England in 1807. He  discovered that he could separate out the sodium from compounds by  using electricity.otassium was discovered by Sir Humphrey Davy in 1807 Lithium was discovered by Johan August Arfvedson in 1817 Sodium was discovered by Sir Humphrey Davy in 1807. 6 people found this useful.