Seaborgium

General properties
Name, symbol, number	seaborgium, Sg, 106
Element category	transition metal
Group, period, block	6, 7, d
Standard atomic weight	(269)
Electron configuration	[Rn] 5f14 6d4 7s2 (predicted) 2, 8, 18, 32, 32, 12, 2 (predicted)
History
Discovery	Lawrence Berkeley National Laboratory (1974)

Seaborgium is a synthetic chemical element with the symbol Sg and atomic number106.

Seaborgium is a synthetic element whose most stable isotope ²⁷¹Sg has a half-life of 1.9 minutes. A new isotope ²⁶⁹Sg has a potentially slightly longer half-life (ca. 2.1 min) based on the observation of a single decay. Chemistry experiments with seaborgium have firmly placed it in group 6 as a heavier homologue to tungsten.

Return to Periodic Table