Seaborgium

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Seaborgium is a synthetic chemical element; it has symbol Sg and atomic number 106. It is named after the American nuclear chemist Glenn T. Seaborg. As a synthetic element, it can be created in a laboratory but is not found in nature. It is also radioactive; the most stable known isotopes have half-lives on the order of several minutes. In the periodic table of the elements, it is a d-block transactinide element. It is a member of the 7th period and belongs to the group 6 elements as the fourth member of the 6d series of transition metals. Very few chemical reactions of seaborgium have been studied: only a few atoms at a time can be produced and these decay quickly. A few inorganic compounds and a carbonyl believed to be Sg(CO)6 have been synthesized. These experiments have confirmed that seaborgium behaves as the heavier homologue to tungsten in group 6. In 1974, a few atoms of seaborgium were produced in laboratories in the Soviet Union and in the United States. The priority of the discovery...

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