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Seaborgium is a radio active atom that was obtained by nuclear fusion techniques. It does not occur in nature.

What the name means: Seaborgium was named after the American nuclear scientist and Nobel Laureate, Glenn Theodore Seaborg.
The International Union of Pure and Applied Chemistry (IUPAC) had given the new element the name Unnilhexium, with the symbol Unh. In 1997 the IUPAC accepted the name seaborgium (even though this name had been rejected in 1994 because the committee voted against naming an element after a living person).

Who made seaborgium?: Albert Ghiorso, J.Michael Nitschke and their co-workers at the Berkeley Laboratory of the University of California, USA in 1974.

About seaborgium: Seaborgium was made by bombarding californium atoms with oxygen nuclei at the Berkeley Laboratory. Only a few atoms of seaborgium have ever been made. Seaborgium atoms have a half life of 2,4 minutes.