'''Seaborgium''' is a synthetic chemical element with the symbol Sg and atomic number 106. Seaborgium is a synthetic element whose most stable isotope 271Sg has a half-life of 1.9 minutes. | '''Seaborgium''' is a synthetic chemical element with the symbol Sg and atomic number 106. Seaborgium is a synthetic element whose most stable isotope 271Sg has a half-life of 1.9 minutes. |