NO. 106Transition

Sg

Seaborgium

Seaborgium is a superheavy Transition with properties similar to tungsten. Only a few atoms have ever been studied.

Crystal Structure

Hexagonal close-packed (predicted)

Atomic Mass269 u

Density18.6 g/cm³

Melting Point2600 K

Boiling Point5200 K

Atomic Radius143 pm

Electronegativity1.3

Ionization Energy600 kJ/mol

Electron Affinity0 kJ/mol

Bonding TypeMetallic

Oxidation States6

Acid/BaseBasic

ReactivityMedium

Electron Configuration

[Rn] 5f14 6d4 7s2

Discovered ByLawrence Berkeley Lab

Year1974

Known Isotopes

Sg-269