Seaborgium
Atomic symbol: Sg
Atomic number: 106
Atomic mass: 269
Appearance: Solid at 25°C
Group: 6
Period: 7
Series: Transition metals
Block: d
Electron configuration: 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 5s² 5p⁶ 4f¹⁴ 5d¹⁰ 6s² 6p⁶ 5f¹⁴ 6d⁴ 7s²
A synthetic, radioactive metal.
Fun Fact! Seaborgium is incredibly unstable, with the most stable isotope, seaborgium-271, having a half-life of only 1.9 minutes (114 seconds)!