- Atomic Radius (Å)
Seaborgium is a synthetic element with symbol Sg and atomic number 106. Its most stable isotope 271Sg has a half-life of 1.9 minutes. A more recently discovered isotope 269Sg has a potentially slightly longer half-life (ca.
106
Atomic Number
269
Atomic Mass (u)
35
Density (solid: g/cm³, gas: g/liter)
7
Number of Shells
2, 8, 18, 32, 32, 12, 2
Electron Shell Occupations