EVERYDAY SCIENCE

Detailed explanation-1: -Curium. The first entirely synthetic element to be made was curium, synthesized in 1944 by Glenn T. Seaborg, Ralph A. James, and Albert Ghiorso by bombarding plutonium with alpha particles.

Detailed explanation-2: -This revelation would eventually lead to the development of nuclear weapons-and meant that Segrè and Perrier’s eka-manganese was the first true synthetic element. In 1947, ten years after its discovery, they named it technetium, after ‘technetos’, the Greek word for ‘artificial’7.

Detailed explanation-3: -Hence, neptunium and plutonium are both transuranium elements. They are unstable and decay radioactively into other elements. All of these elements were discovered in the laboratory as artificially generated synthetic elements. They are prepared using nuclear reactors or particle accelerators.

Detailed explanation-4: -Technetium is the first man-made element.

Detailed explanation-5: -The first elements-hydrogen and helium-couldn’t form until the universe had cooled enough to allow their nuclei to capture electrons (right), about 380, 000 years after the Big Bang.