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He is usually given credit for its discovery as an element.In 1783, Antoine Lavoisier gave the element the name hydrogen (from the Greek hydro meaning water and genes meaning creator)when he and Laplace reproduced Cavendish's finding that water is produced when hydrogen is burned.
Hydrogen is also the simplest of all elements. Its atoms consist (usually) of one proton and one electron. Hydrogen was first discovered in 1766 by English chemist and physicist Henry Cavendish (1731-1810). Cavendish was also the first person to prove that water is a compound of hydrogen and oxygen. Some experts believe that hydrogen forms more compounds than any other element.