|
106
Sg
(271)
|
A small part of the super-HILAC under construction at the Berkeley Lab in 1972. In 1974, seaborgium atoms were synthesized in this accelerator.
| Classification: | Seaborgium is a transition metal |
| Atomic weight: | (271), no stable isotopes |
| State: | solid (presumed) |
| Shells: | 2,8,18,32,32,12,2 |
| Electron configuration: | [Rn] 5f14 6d4 7s2 |
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.
Appearance & Characteristics
Seaborgium is radioactive.
Harmful effects:
Seaborgium is harmful due to its radioactivity.
Characteristics:
Seaborgium is a radioactive synthetic metal and has only been produced in tiny amounts.
Seaborgium is of research interest only.
Seaborgium is harmful due to its radioactivity.
Characteristics:
Seaborgium is a radioactive synthetic metal and has only been produced in tiny amounts.
Uses of Seaborgium
Seaborgium is of research interest only.
Abundance & 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.
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.
Energies
Specific heat capacity: J g-1 K-1
Heat of fusion: kJ mol-1
1st ionization energy: kJ mol-1
3rd ionization energy: kJ mol-1
Heat of fusion: kJ mol-1
1st ionization energy: kJ mol-1
3rd ionization energy: kJ mol-1
Heat of atomization: kJ mol-1
Heat of vaporization : kJ mol-1
2nd ionization energy: kJ mol-1
Electron affinity: kJ mol-1
Heat of vaporization : kJ mol-1
2nd ionization energy: kJ mol-1
Electron affinity: kJ mol-1
Oxidation & Electrons
Shells: 2,8,18,32,32,12,2
Minimum oxidation number:
Min. common oxidation no.:
Electronegativity (Pauling Scale):
Minimum oxidation number:
Min. common oxidation no.:
Electronegativity (Pauling Scale):
Electron configuration: [Rn] 5f14 6d4 7s2
Maximum oxidation number:
Max. common oxidation no.:
Polarizability volume: Å3
Maximum oxidation number:
Max. common oxidation no.:
Polarizability volume: Å3
Reactions & Compounds
Reaction with air:
Reaction with 15 M HNO3:
Oxide(s):
Hydride(s):
Reaction with 15 M HNO3:
Oxide(s):
Hydride(s):
Reaction with 6 M HCl:
Reaction with 6 M NaOH:
Chloride(s):
Reaction with 6 M NaOH:
Chloride(s):
Radius
Atomic radius: pm
Ionic radius (2+ ion): pm
Ionic radius (2- ion): pm
Ionic radius (2+ ion): pm
Ionic radius (2- ion): pm
Ionic radius (1+ ion): pm
Ionic radius (3+ ion): pm
Ionic radius (1- ion): pm
Ionic radius (3+ ion): pm
Ionic radius (1- ion): pm
Conductivity
Thermal conductivity: W m-1 K-1
Electrical conductivity: x 106 S m-1
References
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