Harold Urey

Harold Urey was an American chemist known for his groundbreaking work in analytical chemistry, particularly in isotope separation. He developed methods to distinguish between different isotopes of elements, which are variations of atoms with the same number of protons but different neutrons. His most famous contribution is the discovery of deuterium, a heavier isotope of hydrogen. Urey's work had significant implications in various fields, including nuclear energy and geochemistry, as it helped scientists understand chemical processes and trace the origins of materials in the universe. His efforts advanced analytical techniques that continue to be important in chemistry today.