About

Seaborgium is a synthetic element named in honor of Glenn T. Seaborg, a key figure in synthesizing ten transuranic elements. It caused controversy by being the first element to be named after a living person. As a group 6 element, its chemistry is predicted to resemble tungsten. Its most stable isotope has a half-life of several minutes, allowing for limited chemical experiments.

Atomic Properties

Atomic Number106

Atomic Weight271 u

Neutrons (common)165

Electron Configuration[Rn] 5f¹⁴ 6d⁴ 7s²

Full 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

Oxidation States+6, +5, +4, +3, 0

Periodic Table Position

Group6

Period7

BlockD

Chemical SeriesTransition metals

Physical Properties

State at STPsolid

Appearancepredicted to be a silvery-white or gray metal

Crystal Structurebcc

Magnetic Orderingparamagnetic

Discovery

Discovered byLawrence Berkeley National Laboratory and Joint Institute for Nuclear Research

Discovery Year1,974

Occurrencesynthetic

CAS Number54038-81-2

Electron Configuration

Energy

↿⇂

1s

↿⇂

2s

↿⇂

2p

↿⇂

3s

↿⇂

3p

↿⇂

4s

↿⇂

3d

↿⇂

4p

↿⇂

5s

↿⇂

4d

↿⇂

5p

↿⇂

6s

↿⇂

4f

↿⇂

5d

↿⇂

6p

↿⇂

7s

↿⇂

5f

↿

6d

7p

Isotopes of Seaborgium

Symbol ▲	Mass (u) ▲	Abundance ▲	Half-life ▲	Decay Mode ▲
²⁷¹Sg	271.133930	—	1.9 m	Alpha Decay, Spontaneous Fission