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Seaborgium (Sg)

From Wikipedia, the free encyclopediaSeaborgium is a synthetic element with symbol Sg and atomic number 106. Its most stable isotope 271Sg has a half-life of 1.9 minutes. A more recently discovered isotope 269Sg has a potentially slightly longer half-life (ca.

Seaborgium in the periodic table

Atomic number106
Element categoryTransition Metal

Physical properties

Phase at STPSolid
Density35 g/cm3
Atomic weight269 u
Melting point-
Boiling point K

Atomic properties

Electronegativity (Pauling Scale)
Electron affinity kJ/mol
Oxidation states0, (+3), (+4), (+5), +6
(parenthesized: prediction)
Ionization energies
1757.4 kJ/mol
21732.9 kJ/mol
32483.5 kJ/mol
43415.6 kJ/mol
54561.8 kJ/mol
65715.8 kJ/mol

Electron configuration

Elektronkonfiguration (shorthand)[Rn] 5f14 6d4 7s2
Electron configuration1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 5f14 6s2 6p6 6d4 7s2
Electrons per shell2, 8, 18, 32, 32, 12, 2


Discovered byLawrence Berkeley National Laboratory
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