106Sg269.000
Transition Metald-blockRadioactive
Seaborgium
Element 106 on the periodic table, symbol Sg, group 6, period 7.
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.
Properties
- Atomic Number
- 106
- Atomic Mass
- 269.0000 u
- Group
- 6
- Period
- 7
- Block
- d-block
- Category
- Transition Metal
- State at 25 °C
- Solid
- Melting Point
- Not measured
- Boiling Point
- Not measured
- Density
- 35 g/cm³
- Atomic Radius
- Not measured
- Electronegativity
- Not measured
- Oxidation States
- +6
- Abundance in Crust
- Vanishingly rare
- Discovered
- 1974
- Discovered By
- Lawrence Berkeley National Laboratory
Electron Configuration
*[Rn] 5f14 6d4 7s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 7s2 5f14 6d4
Elements near Seaborgium
Elements in the same group share the number of outer electrons and behave in similar ways. Elements in the same period share a shell, so they change steadily from left to right.