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Seaborgium

106
269
Sg
Seaborgium

Element Stats

Select a temperature unit to update boiling and melting point values.

Physical

Physical Properties
PropertyValuePropertyValue
AppearanceAppearance unknown; only a few atoms have ever been produced
ClassificationTransition MetalsDensity23–24 g/cm³, predicted
Boiling Point--Melting Point--

Atomic

Atomic Properties
PropertyValuePropertyValue
Atomic Number106Atomic Mass269
Van Der Waals Radius--Atomic Radius (empirical)132, predicted

Electronic & Chemical

Electronic and Chemical Properties
PropertyValuePropertyValue
Electronegativity--Electron Affinity--
Electron Configuration1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 7s2 5f14 6d4
Oxidation States0, (3), (4), (5), 6 — (predicted)
Ionization Energies

Showing 5 of 6 ionization energies.

  1. 757 kJ/mol
  2. 1733 kJ/mol
  3. 2484 kJ/mol
  4. 3416 kJ/mol
  5. 4562 kJ/mol

History

Element 106, seaborgium, was discovered by a team at the University of California, Berkeley, in 1974. Scientists bombarded molecules of californium with oxygen ions. But there was a twist—scientists at the Soviet Union’s Joint Institute for Nuclear Research claimed they’d found the element several months earlier!

It wasn’t until 1992 that an international committee decided the Soviet team’s research wasn’t convincing enough and gave credit for seaborgium’s discovery to the American team. The team named the element after Glenn Seaborg, an American chemist whose work helped redefine the scientific community’s understanding of the elements.

Properties

Seaborgium is an extremely radioactive element whose longest-lived isotope has a half-life of only around two minutes. Because seaborgium decays so quickly, scientists don’t know for sure what the element’s properties are. Analyzing seaborgium atoms is a little like watching for shooting stars—blink and you’ll miss them! However, scientists think that seaborgium has physical and chemical qualities comparable to tungsten, its neighbor in the periodic table.

It’s likely that in sufficient qualities, seaborgium would be silvery grey in color.

Uses

Seaborgium has no known non-research uses.

Compounds

Despite its short half-life, several seaborgium compounds have been produced and studied, such as seaborgium oxyfluoride, seaborgium oxychloride, and seaborgium oxide.

Forms

Seaborgium has 13 have been reported isotopes. The longest-lived isotope, seaborgium-269, has a half-life of around two minutes. Many other seaborgium isotopes have half-lives of much less than one second!

Sources

Seaborgium is a synthetic element, meaning that as far as scientists can tell, it doesn’t occur in nature. In fact, only a few laboratories in the world can make seaborgium, and only a few atoms of the element have ever been produced. Seaborgium is made by bombarding the atoms of one element with the atoms of another inside a linear accelerator, like the Los Alamos Neutron Science Center (LANSCE).

Fun Facts

What's in a name?

Seaborgium was the first element to be named after a living person, nuclear chemist Glenn T. Seaborg.

Why is this on my FYP?

Even seaborgium’s longest-lived isotope doesn’t last long. Its half-life is only about two minutes—about the length of the average TikTok video.

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