Seaborgium - Sg

Chemical properties of seaborgium

Seaborgium (Sg) is a synthetic, radioactive element with atomic number 106. It is assigned to Group 6, below chromium, molybdenum, and tungsten. Seaborgium has no stable isotopes; [269] is a representative radioactive mass number, not a standard atomic weight. Only a few atoms have been produced, so bulk properties such as density and melting point are unknown.

Research and occurrence

Seaborgium does not occur naturally. It is created in nuclear-reaction experiments and studied atom by atom. Its brief existence and tiny production quantities leave no commercial, environmental, or water-treatment application.

Health and environmental context

Seaborgium is radioactive and present only in controlled research settings. It is not an element encountered in ordinary environmental or process-water treatment.

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Seaborgium page last reviewed: 24 October 2026 by Lenntech.