Seaborgium (Sg)

Seaborgium is a synthetic chemical element with symbol Sg and atomic number 106. It is named after the American nuclear chemist Glenn T. Seaborg. As a synthetic element, it can be created in a laboratory but is not found in nature.

Atomic Number

106

Atomic Mass

269 u

Category

transition metal

Phase

solid

Density

35 g/cm³

Electron Shells

2, 8, 18, 32, 32, 12, 2

Atomic Structure

Protons: 106 • Electrons: 106 • Neutrons: Varies by isotope

Electron Configuration: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d¹⁰ 6p⁶ 7s² 5f¹⁴ 6d⁴

Discovery

1974 • Albert Ghiorso, Carol Alonso, Michael Nitschke