Atomic number 106
Seaborgium
Transition metal
No photo: here’s why
Seaborgium is a synthetic element made only in vanishingly small, intensely radioactive amounts - its atoms decay so quickly that no piece big enough to see or photograph has ever existed.
Quick facts
- Atomic mass
- 269.00
- Group
- 6
- Period
- 7
- State (STP)
- unknown
- Electronegativity
- –
- Common ox. states
- +6
Properties
[Rn] 5f¹⁴ 6d⁴ 7s²
- Ionization energy
- –
- Electron affinity
- –
- Melting point
- –
- Boiling point
- –
How dangerous is it?
Made only in particle accelerators a handful of atoms at a time, this element decays almost instantly and is never found anywhere in the world.
- RadioactiveImmediate
Its atoms throw off radiation as they fall apart, but they break down far too quickly to collect.
Probed only by a few research teams using shielded, remotely operated tools.
How it bonds· family overview
Seaborgium (Sg) is a synthetic super-heavy element produced one atom at a time. Its position predicts d-block transition-metal chemistry - multiple oxidation states, oxide and halide salts - but only a handful of atoms have ever existed, so the chemistry is largely inferred from group trends.
