106
266
Sg
Seaborgium

Seaborgium

Unknown
266
[Rn] 5f146d47s2
271Sg
6
7
d
106
2, 8, 18, 32, 32, 12, 2
757.4 (estimated)
Sg
Unknown
Unknown
Unknown
Albert Ghiorso and colleagues
1974
54038-81-2
More Information
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History

In 1970, a team led by Albert Ghiorso at the Californian Lawrence Berkeley National Laboratory (LBNL) bombarded californium with oxygen and was successful in producing element 106, isotope 263. In 1974, a team led by Georgy Flerov and Yuri Oganessian at the Russian Joint Institute for Nuclear Research (JINR) bombarded lead with chromium and obtained isotopes 259 and 260.


In September 1974, a team led by Ghiorso at LBNL produced isotope 263, with a half-life of 0.8 seconds, by bombarding californium with oxygen. Several atoms of seaborgium have since been made by this method which produces one seaborgium atom per hour.

Atomic Data

Atomic Radiues, Non-bonded (A): Unknown
Electron Affinity (kJ mol-1): Unknown
Covalent Radiues (A): 1.43
Electronegativity (Pauling Scale): Unknown
Ionisation Energies (kJ mol-1) 1st 2nd 3rd 4th 5th 6th 7th 8th
757.4 (estimated) - - - - - - -

Oxidation States and Isotopes

Common oxidation states 1
Isotope Atomic Mass Natural Abundance Half Life Mode of Decay
271Sg 271.134 - 2 m α
sf

Pressure and Temperature Data

Specific Heat Capacity: Unknown
Shear Modulus: Unknown
Young Modulus: Unknown
Bulk Modulus: Unknown
Pressure 400k Pressure 600k Pressure 800k Pressure 1000k Pressure 1200k Pressure 1400k Pressure 1600k Pressure 1800k Pressure 2000k Pressure 2200k Pressure 2400k
- - - - - - - - - - Unknown

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