Seaborgium Element Facts

The chemical element seaborgium is classed as a transition metal. It was discovered in 1974 by a team of scientists led by Albert Ghiorso.

A small part of the super-HILAC.

A small part of the super-HILAC under construction at the Berkeley Lab in 1972. In 1974, seaborgium atoms were synthesized in this accelerator.


Data Zone

Classification: Seaborgium is a transition metal
Atomic weight: (271), no stable isotopes
State: solid (presumed)
Melting point:
Boiling point:
Electrons: 106
Protons: 106
Neutrons in most abundant isotope: 165
Electron shells: 2,8,18,32,32,12,2
Electron configuration: [Rn] 5f14 6d4 7s2
Show more, including: Heats, Energies, Oxidation, Reactions, Compounds, Radii, Conductivities
Atomic volume:
Specific heat capacity
Heat of fusion
Heat of atomization
Heat of vaporization
1st ionization energy
2nd ionization energy
3rd ionization energy
Electron affinity
Minimum oxidation number
Min. common oxidation no.
Maximum oxidation number
Max. common oxidation no.
Electronegativity (Pauling Scale)
Polarizability volume
Reaction with air
Reaction with 15 M HNO3
Reaction with 6 M HCl
Reaction with 6 M NaOH
Atomic radius
Ionic radius (1+ ion)
Ionic radius (2+ ion)
Ionic radius (3+ ion)
Ionic radius (1- ion)
Ionic radius (2- ion)
Ionic radius (3- ion)
Thermal conductivity
Electrical conductivity
Freezing/Melting point:

Discovery of Seaborgium

Seaborgium was first synthesized in 1974 at the Lawrence-Berkeley Laboratory, USA, by a team of scientists led by Albert Ghiorso and at the Joint Institute for Nuclear Research at Dubna, Russia.

The element was named after Nobel prize winner Glenn Theodore Seaborg, the American nuclear chemist.

Seaborgium is radioactive

Seaborgium is radioactive.

Appearance and Characteristics

Harmful effects:

Seaborgium is harmful due to its radioactivity.


Seaborgium is a radioactive synthetic metal and has only been produced in tiny amounts.

Uses of Seaborgium

Seaborgium is of research interest only.

Abundance and Isotopes

Abundance earth’s crust: nil

Abundance solar system: nil

Cost, pure: $ per 100g

Cost, bulk: $ per 100g

Source: Seaborgium is a synthetic, radioactive metal, created by nuclear bombardment. It has only been produced in tiny amounts. The metal is made by bombarding californium-249 with heavy oxygen ions.

Isotopes: Seaborgium has 11 isotopes whose half-lives are known, with mass numbers from 258 to 271. None are stable. The most stable isotope is 271Sg with a half-life of 1.9 minutes.

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