سیبورگیم

Seaborgium is a human-made radioactive element (symbol Sg, atomic number 106) that can only be created in laboratories and breaks down quickly, with its most stable forms lasting just minutes. It was named after American nuclear chemist Glenn T. Seaborg and represents one of the heaviest elements on the periodic table that scientists have been able to synthesize.

AI-generated from the Wikipedia summary — may contain errors.